A few days had passed since the incident and today was such a special day where Katsumi could put her plan into action! How could she not? After all this was the perfect opportunity to finally get rid of the wall. Katsumi was rushing around her room, slipping on a yellow dress which only went to her knees, her hair was up in a ponytail, and finally no shoes or socks, who needs those when you are a about to go for a swim?

Now with a certain king and queen the two were in their room, looking out the window, Katsuki arms wrapped around her waist, both looking at the wall, "You ready?" She asked, Katsuki just nodded, squeezing her tighter, "Is something the matter?" The queen asked, wondering what her husband was thinking, "Just thinking how good you will look begin all wet~." He says, a playful smirk forming on his face as his queen face turn slightly red.

"Oh you...be lucky I love you or I would have thrown you out all ready." He chuckled at her words as he pulled away from her, "Not my fault your head goes to a filthy place."

"Yeah, yeah, whatever you say you pervert." (Y/N) says, rolling her eyes as she turns towards her husband, but at that moment her face turns a darker shade, watching Katsuki take off his shirt. Katsuki chuckled, not even needing to look over, knowing his wife face was beautiful shade of red, "Like what you see~?" He asked in a teasing tone as (Y/N) stumbled over her words, not a single sentence leaves her mouth, only broken her words. Katsuki was quick to get dress, while (Y/N) looks away, Katsuki teasing words still leaving his mouth, it wasn't his fault you could be so adorable, he just add to tease. Any opportunity is a opportunity he is taking.

Now just like his daughter he put on no shoes or sock. He then turned towards her, she was still dressed in her pjs which was a orange nightgown. "Need some help changing?" He asked, causing a "No!" To quickly leave his wife lips, but he ignored it as he walked towards her, pushed her on the bed, and got on top of her, "Let me help my little princess~"

(Y/N) looked at him in shock, not believing what is happening, "I am a-a queen n-not a princess."

"Well to me you are still the shitty, stupid princess that I met all those years ago~"

"Whatever! N-now get off, we don't want t-to be late."

Katsuki only shook his head, before placing his right hand on her leg before letting it slide up her leg and going under her nightgown, "I think you need a bit of help~"

The queen could only cover her face as she knew she was gonna be stuck there for the moment.

Now back with the princess she was running all over the castle making sure everything was going as plan, she needed this day to be perfect, well...it doesn't need to be perfect, in all honestly she just wants it to go right. She didn't want the day where the wall was going to disappear to be ruined by anything or anyone.

Katsumi never felt so happy in her whole life even begin a mermaid didn't compare to this. She eventually made it to the dining room, she saw her grandfather, Shinso, and...that's it. Where is her mother and father, she didn't understand where they can be. She was about to leave and head to her parents room, but was stopped by Shinso, telling her to come eat. She was going to argue, but she didn't want to fight so she listened. After around twenty minutes her two parents finally enter. Katsumi noticed a few things, one her mom hair was in a ponytail which wasn't often, two she noticed purple bruises on her neck, and three her father had a smirk on his face, Katsumi was going to ask a question, but was stopped by her mother who told her "Don't ask."

Katsumi nodded before going back to eating. The queen walked over to the table and sat down, she was wearing shorts and a black shirt while good king Katsuki was wearing his black tank top and pants.

Katsumi was done eating by the time they started and she ushered them to hurry up. Her parents could only sigh as they tried to eat quickly the whole time (Y/N) muttering insults at Katsuki who would only respond with the teasing comments.

Katsumi just watched in confusion, not sure what the two were even doing, but all she knew is that they were taking to long.

"Come on! We need to hurry!" She yells, getting up from the table.

"Fine. Let's go Katsu. Our daughter isn't gonna let js finish."

"Alright. Let's go then." He replies getting up and (Y/N) does the same. Katsumi was quick to leave the room, heading out of the castle and past the wall, to meet her other grandfather and the other merfolk. Masaru picked up his granddaughter and took her over to a rock and placed her on it, handing her the trident afterwards.

Now inside the wall, (Y/N) and Katsuki gathered all those inside and even the towns people were invited to a certain point outside of the castle where they could meet the others and see ocean after the wall was gone.

Katsuki felt his own excitement build up, he couldn't believe that the most hated thing in his life, beside the fuckers that killed his mom, would be gone. He looked around and soon noticed a weird man who looked like a Skelton. He couldn't help but think that this person seemed familiar and it then hit him, it was him...the man who taught him how to read, Toshinori, he just couldn't believe it. He knew he only had a few minutes till the wall was gone so he quickly left his wife side and headed over to him. And once Toshinori noticed him they didn't say anything at first before the conversation started up, they talked how they have both been and the conversation soon went to his mother.

It was then Katsuki remembered what Chiyo asked him all those years ago, asking him to point Toshinori in her direction if he ever met him again. He was quick to tell him that, causing a nod form the old man before making his way through the crowd to leave.

"Bye old man, and thanks for all those years ago."

"Your welcome, see you around young Bakugou."

Katsuki smiled, before making his way back to his wife who had been watching, "So what did the two of you talk about? And who was that?" She asked,

"Nothing really and someone who I owe a lot to. That all."

"If you say so."

The Katsuki reached out his hand and grabbed (Y/N)s, giving it a squeeze causing a smile to form on his lips and as well as hers.

Back outside the wall Katsumi waited for the single before gripping the trident and lifting it up, causing it to glow and then aiming it at the wall.

"Now we can all be together!" She yells, as a yellow beam hit the wall causing it to disappear.

"I feel the music playin'! It's swingin'and it's swayin'!" Sings Aizawa as he comes above the water and the fish band starts to play.

"Life is a rhapsody,whoo. Today we're so delighted. Today we're all united! Here on the land and sea! I see the sails are sailing. Even the whales are whaling! We're swimmin'fancy free! We're feeling better now! We sing together now! Here on the land and sea!" Aizawa kept swimming around by fish and humans alike who have come into the water.

"La-dee-da! Pick up the beat! Move your fins
and move your feet! Life is sweet! Life is grand!
Blowing bubbles with the brass bass band!" Everyone sings as they push one another into the water or play around.

"Everybody now!" Aizawa says, climbing up onto a rock, looking at those who haven't come into the water yet

"Come on in! There's plenty of water for everyone!" Katsumi says to the noble kids who were looking down from balcony. Katsumi jumped into the water from the rock and the noble kids jump in not long after. Katsumi then turns around to see her father pick up her mother and run into the water while others follow them into the water.

Katsuki and (Y/N) pull away and swim around, before Katsumi swims over to her father, hugging him as they sing together, "There's no more stormy weather. Now we can sing together. In perfect harmony!"  Katsumi then pulled away and started to swim around, enjoying the music that was around her.

Then the others that were in the water join them in signing, "We're feeling better now
We sing together now here on the land and sea!"

"Those on land sing!" Aizawa says, pointing to those who were still on land, but those in the water also joined in.

"La-dee-dah-doh!"

"Those below sing." Aizawa sings while diving under the water and gesturing to the fish,

"Lo-dee-doh-doh!"

"Life is sweet. As sweet can be. On the land and on the sea! Everybody sing!" Aizawa then swims back up to the surface and climbs onto the rock.

"Come on, Shin, join us. The water's great!" The queen says, looking at her purple haired friend who was watching all chaos that was taking place.

"I think not, mam. The very idea seems rather absur..." He was then cut off as Izuku pushed him into the water. Shinso lifted up his head, his hair all wet as he looked at the green wet dog that barked happily.

"We're feeling better now! We sing together now! Here on the land and sea!" Aizawa dived into the water, running into a yellow crab with crazy hair. Aizawa gestured for the crab to follow him as he swam up to the surface and the yellow crab followed after him along with other sea creatures.

Now above the water Katsumi was swimming backwards and bumped into the back of the merboy she had met earlier.

"Whoa!"

"Sorry."

"Oh, hi."

"Hi."

Katsumi blushes as she gives the boy a smile, praise whatever god you believe in that Katsuki didn't notice the interaction between the two.

"We're feeling better now. We sing together now. Here on the land and sea!" Everyone sings together!before just enjoying the day by swimming and playing around with one another. That celebration seemed to last forever. The sun soon was setting and one by one merfolk and human alike were leaving. The final three, which were Katsumi, Katsuki, and (Y/N). Katsuki was carrying a sleeping Katsumi.

She was soon placed in bed by her father once they reached her room inside the castle. The locket still around her neck that had caused all the issues.

The queen and king decided to let her sleep for now, but would definitely make her take a bath in the morning.

Katsuki gave a kiss to his sleeping daughter forehead before pulling away, turning towards his wife and grabbing her hand, "I love you so fucking much." He says to her causing (Y/N) to giggle, "I love you so fucking much to. Now let's head to bed, I am to tried to even think about anything else."

"Alright..let go shitty girl."

The two walk out heading to their own room, falling right into bed after the door was closed. They cuddled that night, not worrying about a single thing, before getting woke up in the morning by a excited Katsumi who wants to go swimming with them....sigh.

The end!