The Next Day

"Y/N! Did you pack your juice!?" Your dad yelled from the living room as you were stuffing your bags with the last bits of things you needed for the trip.

"Not yet!" You yelled while stuffing your bag with training weights.

"Well, don't forget to drink PLENTY of juice! Remind Ryu also! He needs it!" He yelled as he walked into the kitchen of the secret home you were all staying in.

You were currently packing your things into your bags so that you were ready to train at the summer camp your class was going to. As you packed the last bag out of the three you were bringing, 21 barged into your room and jumped on your back.

"Onii-chan~!" She said happily as she rubbed her cheek against yours and you were hunched over as her tail wrapped around your waist.

"What is it now, 21? I'm not going to tell you what swimsuit looks better on you." You said as she pouted and showed you her phone while not hopping off of you.

"Everyone's going to the pool at school before the trip! Let's go! Please! Please! Please!" She begged you while trying to act cute.

"Are you done packing?" You asked.

"Mhmm!" She nodded happily.

"Are you sure?" You asked.

"Yup! Please!" She begged once last time as you sighed.

"Alright, we'll go." You said.

"Yay!" She squealed as she ran back to her room.

You shook your head and reached into your closet to grab your school swim trunks before you left your room and left with 21.

"We'll be at the pool endurance training." You said while the two of you walked out the door.

"Have fun!" Your dad said as you and 21 flew towards the school.

As you flew to the school, you were on your phone texting someone as 21 looked at you and saw your smiling and chuckling.

"Who are you talking to, Onii-chan?" She asked.

"Ohh, just texting Raon. Back at the mall that was the only time I would see her for a few months. She's started her tour in Korea." You said as she replied to your text and you laughed, making 21 pout before jumping on your back and covering your eyes.

"Pay attention to me, Onii-chan!!!" She whined as you yelled while flying crazily, not knowing where you're going.

"H-Hey! Stop! 21! I can't see!" You yelled as her tail wrapped around your neck.

"I'm the only girl Onii-chan needs! You can play with the others, but you belong to me!" She stated as you were gasping for air.

"2-21! C-Can't...! Breathe!" You gasped while turning blue.

"Onii-chan! Pay more attention to me!" She whined again as you tapped out while falling.

"Okay! Okay! I will!" You gasped as she giggled and released you as she carried your limp body in your arms and flew towards the school.

"Yay!!!!" She cheered while shoving your face into her cleavage.

As you both neared the school, you saw the pool below and there was your classmates all stretching and getting ready for the pool time. 21 landed as she released you from her arms.

"Hi everyone!" She waved as you were on your hands and knees trying to breathe right.

"Are you okay...?" Tokoyami asked as you weakly gave a thumbs up.

"I'm gonna go change, be right back!" 21 said as she ran to the girls locker room with her school swimsuit.

"Y/N!" Momo yelled as she and Tsu ran up to you and both gave you a kiss on the cheek.

"Hey, girls." You said giving them a kiss back. "How long have you been here?" You asked.

"Not long, we can use the pool until 5 P.M. Ribbit." Tsu said as you looked at both of them in their swimsuits.

"You both look so cute in your school swimsuits." You said as they blushed. "Haha, well, i'm gonna change here, if you don't mind." You said.

"NOT AT ALL!" Mina screamed while breathing like a dog behind Momo as she watched you.

As you took off your clothes and stripped down to just your boxers, all the girls were blushing insanely as they looked at your well-toned, muscular body.

"It's like he's a God..." Momo said.

"Ribbit..." Tsu said while her tongue hung out.

"I'm in heaven..." Jiro muttered.

"Ahhhh~" Toru sighed happily while her blush was invisible.

"Meh. Deku-kun is better..." Uraraka thought while looking away.

You slipped on your swim trunks and started to stretch out your body with the rest of the guys.

Just as you were stretching out your legs, the boys locker room doors burst open and Mineta Kaminari came flying out.

"Come, let us go...to our paradise!" They yelled as they flew by Iida.

"You're late." Iida greeted them as they spat in shock and slid face on the floor.

"Hey, hey, hey! Why are you guys here?" Mineta asked in shock.

"Since we're doing endurance training at the pool, I messaged everyone to see if they wanted to come." Midoriya said as he walked next to Iida.

"Is that what happened? You're too diligent, Midoriya!" Kaminari spoke lowly in anger.

"Calm down, Kaminari. There are definitely girls in swimsuits here!" Mineta reassured as they prepared their eyes for beauty.

"I'll burn the sight into my eyes!" Kaminari thought.

"The sight of their new swimsuits!" Mineta thought as they turned to see all the girls stretching in their school swimsuits.

"Oh, Mineta." Tsu acknowledged him.

"Kaminari, you came, too?" Jiro asked while stretching next to Mina.

"What's with those swimsuits? They should be wearing bikinis." Kaminari thought in let down while looking away in sadness.

"School-issue swimsuits are pretty good, too." Mineta said while admiring the sight.

"You're okay with anything?" Kaminari looked at him in shock as the girls locker room doors opened and 21 walked out.

"Guys, I think I told them the wrong size..." 21 said as Kaminari and Mineta looked in her direction and their jaws dropped when they saw that 21's swimsuit was almost choking her body. "I think they gave me an extra small instead of medium." She complained.

"H-H-HOLY-!" You cut both of them off as you turned their heads towards you and you were glaring as you transformed.

"Are you thinking perverted thoughts of my little sister?" You asked as they grew terrified.

"N-N-No...sorry..." They said.

"Kaminari, Mineta! It was a great idea to suggest endurance training at school! I'm impressed!" Iida said as the two of them grew terrified when he approached them with open arms. "Now, why don't you come and sweat with the rest of us?" He said as he picked them both up and carried them over to the guys.

"N-No, wait..." Kaminari struggled.

"W-Wait..." Mineta stuttered.

"Wait a minute!" They yelled as Iida merely laughed at their reactions.

Timeskip, After The Warm Up

"Hero I go!" Mina yelled as she happily hit their volleyball into the air.

"Here!" Uraraka said as she passed it on.

"Ribbit!" Tsu said while smacking it away with her tongue to Jiro as she passed it Toru.

"Take that!" Toru said while passing it to Momo.

"Got it!" Momo said while passing it to 21.

"Onii-chan!" 21 giggled as she passed it to you as you let it bounce off your head and towards Uraraka. "Onii-chan! You're no fun!" 21 pouted as you sighed.

"Why am I on this side again?" You asked as she snaked her tail around your arm and pulled you close to her.

"Because you're not leaving my sight." She said while hugging you.

"Hey..." Momo called her as 21 turned to see her glaring with wide-eyes and an evil aura. "You bitch!" Momo said as you were stunned by her words and 21 got mad.

"What?! I just want to spend quality time alone with MY Onii-chan! It's my reward!" She said with a smirk before showing her sharp teeth in anger. "A girl who doesn't get wet from their own hot, God-like Onii-chan is crazy, you wide-mouthed gorilla!" She yelled as Momo's eyes grew wider-along with her evil grin.

"You lamprey!"  Momo said while standing taller than her.

"I changed this way to impress my Onii-chan." 21 smirked at her while letting off some energy.

"At least I didn't have to mutate to get a guy to like!" Momo yelled while looking crazy as the two were squared off and you floated next to Tsu.

"This is why you're my favorite." You said while patting her head and she Ribbit under the water in pleasure.

Meanwhile on the guy's side, Kaminari and Mineta were dying from the warm-up as Iida spoke up.

"All right, let's take a 15 minute break! I brought these for everyone! Drink up!" He said while opening a cooler to reveal lots of orange pop.

"Oh!" Sato gasped in thirst.

"Just what I'd expect from the class rep! I feel alive again. Thanks!" Ojiro said while grabbing a can.

Kaminari sat in the shade and downed his can as he sighed and stared at you and the girls in distraught.

"Why are the girls playing around? And why does Y/N get to be with them?!" He complained.

"They got permission to use the pool for sunbathing." Mineta told him.

"Mineta, why did you apply to use it for endurance training?" Kaminari scolded him.

"We might not have gotten permission otherwise!" He retaliated.

As the guys were relaxing, and you were spending time giving Tsu headpats while 21 and Momo  continued to argue, Midoriya was next to the diving boards breathing heavily as Iida walked up to him with a can of pop.

"Midoriya-kun." Iida called as he got his attention. "You need to take a break." He said while handing over the can of pop.

"Thanks, Iida-kun." Midoriya replied while opening his can and taking a few sips before noticing Iida staring at him. "What?" He asked.

"Wel, I just thought it was strange." He said while sitting on a diving board. "During the entrance exams, I didn't think I'd end up being such good friends with you. Frankly, I didn't think much of you back then. But, during the practical exam..." He trailed off as he remembered Midoriya risking his life and chances of getting into U.A. to save Uraraka from the faux villains. "...you prioritized saving Uraraka over passing the exam." He said as Midoriya remembered getting the acceptance letter from All Might.

"I was so happy. It had always been my dream to attend All Might's alma mater, U.A." Midoriya said as he sat down on a diving platform as well. "But when I was told that whoever was in last place in the fitness test would be expelled, I thought it was over for me." He said while remembering breaking his finger during the first day of school.

"Even so, you didn't give up. Not during the combat training, either." Iida said while getting up and remembering the times Midoriya shined the most. "It's true that your methods were reckless, but I could feel you tenacity, Midoriya-kun. I think that's what Bakugo and I lost to." Iida said while turning towards his friend.

"That's...I'm here thanks to the help of many different people. That's why I need to work harder!" Midoriya said before a loud voice filled the pool area.

"Of course!" The angry voice yelled as everyone saw Bakugo stomping towards Midoriya. "Otherwise, there's no way I'd lose to a damn nerd like you!" He yelled.

"K-Kacchan!" Midoriya stuttered.

"I got your message, but sorry I'm late!" Kirishima said while stopping Bakugo. "It took some time to get Bakugo to come." He explained.

"Is that what happened?" Midoriya thought in relief.

"Hey, damn Deku!" Bakugo yelled as Midoriya looked at him. "You wanna decide things right now? Huh?" He said while flaring his quirk.

"No...that's not..." Midoriya trailed off while slowly backing away.

"It's true that just training isn't that interesting." Iida thought before an idea came to him. "Everyone, do you want to see which of the boys can swim 50 meters the fastest?" He asked everyone.

"Yeah!" Kaminari said excitedly.

"Sounds fun!" Sero agreed.

"Let's do it!" Sato said in hype.

"Iida-kun." You said while walking to him with the other girls behind you as you held up 21 and Momo by their swimsuits as they tried clawing each other like animals. "We'll help also." You said while gesturing to the girls.

"What about quirks? Can we use them?" Ojiro asked.

"We're at school, so there shouldn't be a problem. However, you cannot cause damage to any people or buildings!" Iida told everyone as Bakugo stood in front of Midoriya.

"I'll crush you, Deku!" He said to him before turning to Todoroki who was sat against a wall. "Of course, I'll crush you, too, Half-and-Half Bastard!" He yelled.

After some time and making brackets, everyone was ready to go, and you were stood next to the girls while continuing to hold up Momo and 21 away from each other as Mineta, Tokoyami, Koji, Bakugo, and Kaminari got ready to launch off their boards.

"Then, on your marks...Get set..." Tsu trailed off before blowing into the whistle she held in her hand as they took off, and Bakugo jumped into the air.

"Explosive Speed Turbo!" He yelled while sliding to a stop at the other end of the pool in first, not even touching the water. "How was that, you extras!?" He gloated.

"What do you mean, "How was that!?" Sero said angirly.

"You didn't even swim!" Kirishima complained.

"It's freestyle!" Bakugo defended himself.

Next was Todoroki, Aoyama, Sero, Kirishima, and Sato.

"On your marks...Get set..." Tsu blew the whistle again as Sero took off using his tape, Aoyama fired his bellybutton laser for a second before crashing into Sero and making them fall, Todoroki froze and slid across the water, and Sato swam as Todoroki finished first.

"You're supposed to be swimming!" Kaminari and Mineta yelled at him.

Next was Iida, Shoji, Midoriya, and Ojiro.

"On your marks...Get set..." Tsu blew the whistle as three of them swam and Iida slid across the swimming lanes at high speeds.

"You too, Iida?!" Kaminari said in shock.

"One for All...Full Cowling!" Midoriya chanted in his head as he used his quirk up to five percent and gained a massive speed boost and passed Iida as they were neck-in-neck, and Midoriya just finished in first, a few inches ahead of Iida.

"Wow!" Sato exclaimed in awe.

"Good job, Midoriya!" Sero praised him.

"Iida, you were so close!" Mina comforted him as Midoriya helped him out the water.

"You beat me, Midoriya-kun." He praised his friend.

"Iida-kun, you were amazing, too." Midoriya complimented him as Todoroki stared at the two and looked between them and you as he remembered the conversation he had with Midoriya, before fighting you in the sports festival.

Flashback, Todoroki vs. Y/N

You were currently walking towards Todoroki as he sent another wave of ice towards you, but you blasted it away.

"You want to win with just half your strength. You realize you haven't even laid a scratch on me yet, right?" You said as he gritted his teeth and you took a fighting stance and got angry at him. "If you wanna win, then come at me with everything you've got!" You yelled while powering up.

You had beaten him down as he was on one knee, still refusing to use his left side against anyone, or use it at all as a matter of fact.

"It's your power, isn't it?" You asked while looking down at him as he gasped.

From that point, he had completely let go, and unleashed his flames towards you as you smiled at him, seeing him release his full potential.

"I want...to be a hero, too...!" He said as you burned those words into your mind.

"Then fight me with everything you've got, Todoroki-kun." You asked him with a genuine smile while getting into a fighting stance.

Flashback Over

A hand was placed on his shoulder as he turned to see you standing next to him while the girls held 21 and Momo back from each other. You looked at Midoriya and Iida who were staring back at you while remembering their own conflicts that they had with themselves, especially Iida.

Flashback, With Iida

Iida was stood in an alleyway in his costume as Stain had a hero pressed against the wall, cut by his sword.

"You must be the Hero Killer: Stain! I am the younger brother of a hero you attacked. The younger brother of a most excellent older brother! I have to come to stop you in his place!" He yelled at Stain.

Stain dropped him on the floor and stabbed him in the shoulder as he glared down at Iida.

"You and your brother are both weak. Because you're fakes." He told him.

In the memory, Iida recalled watching as you, Midoriya, and Todoroki came to his aid when he didn't want it.

"Smash!" Midoriya yelled while punching Stain away and you landed next to him. "We came to save you, Iida-kun!" He said to him.

"You made me late." Todoroki said while his flames lit up the alley.

"The three of us will protect them!" Todoroki said as the three of you who were wounded got up and stood in the way of Stain.

"Why are you three...Why...Please, stop!" Iida begged as you three fought on. "I've inherited my brother's name. Please, stop...I'm...already..." Iida begged as Todoroki got angry.

"If you want us to stop, then stand up!" He yelled while Iida gasped. "Look properly at what you want to be!" He yelled while his flames roared to life.

Flashback Over

Iida looked at Todoroki once more with determination as he thought to himself.

"Todoroki-kun, I vow once more that I will become a hero like my older brother." Iida thought as Todoroki seemed to understand what he was going through.

"I will also become the hero I wish to be..." Todoroki thought.

"I will also become a hero--A hero like All Might, who saves people with a smile..." Midoriya thought to himself as he felt the atmosphere around you four become serious.

"Why are we all staring at each other..." You asked while they were surprised and then weirded out before Iida shook his head and you all returned to your class.

"The winners of each heat--Bakugo, Todoroki, and Midoriya--will race for first place. Is that all right?" Iida asked.

"Yup." Midoriya nodded.

"Yeah." Todoroki agreed.

"Hey, Half-and-Half Bastard! Don't hold back like you did at the sports festival. Come at me seriously!" Bakugo demanded.

"All right." Todoroki acknowledged him.

"You too, damn Deku!" Bakugo yelled at Midoriya.

"A-All right, Kacchan." He said to Bakugo as they took their boards and positions.

"Then, the 50-m freestyle final will now begin!" Iida announced as everyone got fired up.

"Go, Bakugo!" Kirishima cheered on.

"Don't kill the other guys!" Kaminari shouted at them.

"Todoroki, don't lose!" Sero yelled.

"Do your best, Deku-kun!" Uraraka yelled for him.

"Everyone, fight!" Momo said.

"CRUSH EACH OTHER INTO DUST!" 21 said in a demon-like voice as everyone stared at her for a few seconds before turning back into her bubbly self. "Do your best!" She cheered.

"On your marks..." Iida started.

"I'll fly across all at once!" Bakugo thought while flaring his quirk.

"I'll slide through." Todoroki thought while preparing his ice.

"I'll swim to the finish with everything I've got!" Midoriya planned while using One for All.

"Get set..." Iida blew the whistle and the three of them jumped off their boards.

What happened next though shocked everyone as they face planted into the water.

"Wh-What?" Kaminari stuttered.

"Their quirks were erased?" Sero asked.

"It's 5 P.M." You all turned towards the doors and saw Aizawa using his quirk. "Your pool use time has now ended. Hurry up and go home." He ordered everyone.

"Come on, Mr.Aizawa!" Kaminari complained.

"We just got to the good part!" Sero said to him.

"Did you say something?" Aizawa said as his eyes glinted brightly and everyone got scared.

"Nothing, sir!" You all said in unison while rushing to get changed.

After getting changed and meeting back up with Tsu, Momo, and 21, you picked up Momo as Tsu got comfortable on 21 and you both flew into the air with them.

"Man, and I had my bets placed on Todoroki..." 21 pouted.

"Why didn't you race, Y/N-kun?" Momo asked you.

"Ehhh, I was too tired." You said while sighing.

"Y/N-kun, have you finished packing for the summer camp?" Tsu asked.

"Yeah, we finished up before coming here." You said before getting an idea. "You guys want to go see a movie?" You asked.

"Yes!" Momo said happily as she hugged you closer.

"We could rent one and watch it at Yaoyorozu's house." Tsu suggested as Momo got even happier.

"I'll tell my mom to get the popcorn and sleeping bags ready!" She squealed while pulling out her phone.

"Onii-chan, can we watch a scary movie?" 21 asked you.

"Aren't you too scared of scary movies?" You asked.

"N-No! I'm not scared of anything!" She said before pouting. "Baka Onii-chan..." She mumbled cutely.

"My mom said that she'll have them ready by the time we get back. Let's go!" Momo said as she kissed your cheek and hugged you happily.

You flew towards Momo's residence and the four of you spent the rest of the afternoon and evening talking and watching horror movies that would always make 21 scream and give you a death hug each time. After the pain of watching horror movies was over, you were all setting up for bed. Just as you laid in your sleeping bag though, you felt something wiggling around your legs. You gasped and lifted your blanket to see 21 giggling and smiling up at you.

"Onii-chan~" She whispered as she straddled you and held you down.

What shocked you even more was that her pajamas were off and and she was waving her tail around with a smile that a predator makes at its prey.

"Onii-chan~ I love you~ You know that, right~? Right~?!" She asked as a dark red energy surged around you.

"H-H-Hey! Wait! Calm down!" You tried to reason with her.

"It's all your fault, making me like this~! No holding back anymore~!" She said before suddenly being tackled by Momo.

"I WON'T LOSE!!" Momo said as she and 21 went at it and you crawled into Tsu's sleeping bag and gave her a goodnight kiss.

"Again, why you're my favorite." You said as you wrapped your arms around her and fell asleep.

"Ribbit..." Tsu sighed in relaxation and bliss as the two of you fell asleep, and the other two wore each other out and knocked out as you all rested to meet up and head to the summer camp to become even stronger than before.