Super Buu didn't even have a second to blink as Ruby began to punch him over and over again! 

She was now as fast as a Super Saiyan! 

Weiss: When did Ruby have this power? 

Blake: This power ... it- 

Yang: KICK HIS ASS RUBY! 

Ruby was angrily hitting Buu over and over again. 

Super Buu: HOW?! YOU'RE JUST A LITTLE GIRL! 

Ruby: THAT'S WHAT I HATE ABOUT YOU SO MUCH BUU! YOU LOOK DOWN ON EVERYONE SO MUCH! YOU THINK ALL HUMANS ARE WEAK AND POWERLESS! YOU JUST THINK EVERYTHING IS A GAME! LIFE IS NOT A GAME! LIFE IS PRECIOUS! WE ALL ONLY HAVE ONE SHOT AT IT! NO OTHER WORLDS HAVE THE DRAGONBALLS! THAT'S WHY WE ALL CHERISH EVERYONE WE HAVE IN IT! BEFORE YOU KNOW IT, SOMEONE YOU CARE DEEPLY ABOUT IS GONE! YOU DON'T EVEN CARE ABOUT THE LIVES YOU TOOK! 

Super Buu: Why should I care about a whole planet full of meals? They give me the nutrients I need! 

Ruby: WHAT ABOUT WHEN YOU MERCILESSLY TURNED CHICHI INTO AN EGG?! YOU DIDN'T EVEN CONSIDER EATING HER! SHE DIDN'T EVEN HAVE A CHOICE IN THE MATTER! AND IT'S BECAUSE OF YOU THAT PICCOLO, GOTEN, AND TRUNKS ARE STUCK INSIDE THE TIME CHAMBER! I WON'T GIVE YOU ANY MERCY YOU FUCKING DEMON! I'LL KILL YOU! 

Super Buu: ENOUGH OF THIS! 

He blasted her with a Kamehameha, but she knocked it back! 

Ruby: KA ... ME ... HA ... ME ... 

Super Buu: What?! 

Ruby: HAAAAAAAAAAAAAAAAAAAAAAAAAAAAA! 

She blasted him off the Lookout! 

And then she fell down to the ground and turned back to normal. 

Weiss, Blake, and Yang: RUBY! 

They ran to hug her and comfort her. 

Weiss: Are you- 

Yang: Come on, talk to us! 

Ruby woke up. 

Ruby: Was ... that ... me? 

She looked at herself. 

Ruby: How did I do that? 

Blake: You don't remember? 

Ruby: Weiss ... Blake ... Yang ... did you see- 

Weiss: You completely knocked Buu around as if he was nothing! 

Ruby: I ... did? 

Back on Remnant... 

Najimi: Ruby, she's one of them. No wonder her eyes were that color. 

Back with Team RWBY... 

As Ruby stood up with her best friends and big sister, she then sensed Buu! 

Ruby: He's still- 

Buu appeared all angered. 

Super Buu: ENOUGH! I'VE HAD IT UP TO HERE WITH YOU! YOU, GIRL, I'LL EAT YOU NEXT! 

Ruby took her stance and held onto her Nichirin Sword. 

Ruby: Buu, I'm not giving up. We're going to avenge everyone you- 

???: AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAGH! 

A scream rang out and suddenly a portal opened up, causing Piccolo and Gotenks to jump out! 

Blake: They're out! 

Piccolo: Yes! We made it! 

Yang: How did you guys- GOTENKS! 

Gotenks was in a SSJ3 state! 

Gotenks: Heh, impressed? Yeah, we can go SSJ3 just like him. 

Super Buu: You got out?! IMPOSSIBLE! 

Gotenks: You should be scared Buu! We're even stronger than before! 

Piccolo: What's going on? Where's everyone else? 

Ruby: They ... they're- 

Super Buu: HAHAHAHAHAHAHA! They're in here. 

He rubbed his stomach. 

Piccolo: NO! 

Gotenks: YOU ATE THEM ALL?! 

Ruby: It's true ... we saw him. 

Blake: Buu turned them all into chocolate and ate them. We were too slow to save them. 

Gotenks: AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAARGH! BUU! YOU'RE DEAD!!!! 

Gotenks punched Buu, knocking him off the Lookout, and Ruby took notice and knew that she had to stand strong. 

While she was still upset and questioning her new powers, she knew that it had to be put to the side. 

Ruby: Weiss! Blake! Yang! LET'S GO! 

Weiss: What do we- 

Ruby: We're all going to fuse together! 

Blake: WHAT?!

Weiss: ARE YOU OUT OF YOUR MIND?! HOW CAN A FOUR WAY FUSION GO?! 

Ruby: I don't know, but we have to give it a shot! 

Yang: Come on guys, we can do this! We've come this far! We've gotten stronger, and we've kicked ass several times! (Y/N) may not be here right now, but we can't always rely on him! That's why all of us keep training! 

Weiss and Blake understood and nodded and then- 

Team RWBY: FUUUUUUUUUUUUUUUUUUUUUUUUSION HA!!!

They all fused together! 

https://youtu.be/3s2Ksz7rpck

Piccolo: AGH! 

Piccolo was astonished at what he saw! 

RWBY: BUU! 

Super Buu noticed them as Gotenks punched him! 

Gotenks: WHAT?! A-Aunt Ruby? Aunt Weiss? Aunt Blake? Aunt Yang? 

RWBY: No, we are neither of them. We are RWBY. Buu, let's end this! 

Super Buu: MORE OF YOU?! HOW MANY MORE FUSIONS ARE YOU GOING TO PULL OUT OF YOUR ASSES! 

He angrily started attacking them, destroying the Lookout in the process! 

There was almost nothing left of it, but they stood there and- 

RWBY: FISHMAN KARATE: GOD BRICK FIST! 

Using a powerful Haki Punch, they punched Buu so hard that they blew his lower bottom off! 

Buu: AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAARGH! 

RWBY: KAIOKEN TIMES 100,000! 

Buu: KAIO-WH- AAAAAAAAAAAAAAAAAAAAGH! 

RWBY: GOTENKS! 

Gotenks: RIGHT! SUPER DONUT CHAIN! 

They trapped Buu into a tiny ball! 

Gotenks: YES! 

Piccolo: Alright! 

RWBY: PICCOLO! GET IN HERE! 

Piccolo: Huh? What do you have in mind? 

Gotenks: You know, some Ultra BUuu Buu Volleyball! 

Gotenks knocked it to RWBY as their new weapon unleashed an aura-looking scythe! 

RWBY: DESTRUCTO AVAN STRASH! 

They knocked it to Piccolo who set up the ball, and then- 

Gotenks: SPIKE! 

Gotenks knocked Buu down to the ground where he was in a massive crater! 

Gotenks: YES! NOW FOR THE FINISH! THIS TIME YOU WON'T BE ABLE TO- 

Gotenks went back to his base form. 

Gotenks: Uh ... 

RWBY: No, they turned back! 

Buu got up. 

Super Buu: Out of tricks then? 

Gotenks: Hahaha ... uh ... 

Back at Shin's Realm... 

(Y/N): ENOUGH! WE HAVE TO GO! 

Old Kai: I agree, time is up now. 

(Y/N): I swear, this better have been worth it! 

Old Kai: You worry too much, Sonny! Now then, go for it Gohan! 

Gohan: So, I just need to turn Super Saiyan? FINE! AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAGH! 

Gohan unleashed his power and it was so powerful that Old Kai, Shin, and Kibito were blown back! 

(Y/N): HOLY CRAP! 

Goku: G-Gohan! 

Gohan: Wow! Dad! Did you see that?! 

Goku: Yeah, I don't believe it. You haven't changed on the outside! You're not even a Super Saiyan! 

(Y/N): You've grown so much, Gohan! Okay, you ready? 

Gohan: Yeah. 

Goku: I'm sorry guys, I can't go with you anymore. Gohan, I wish I could see you all grown up and in action, but- 

Gohan: Just leave it to me, Dad! 

Both father and son hugged each other as you couldn't help but smile and tear up a bit. 

(Y/N):They've both come such a long way. Gohan, you're no longer that crying little boy that I first saw you as when we met. You're a fighter, a warrior, you're Son Gohan! 

With that, you and Gohan returned to Earth together. 

On Earth... 

(Y/N): Let's go, Go- 

Gohan: Wait, Uncle (Y/N). 

(Y/N): Yeah? 

Gohan: Can you give me the same outfit as my Dad? I want to fight wearing his Gi. 

(Y/N): Heh, sure. 

You used Clothes Beam to give him Goku's Gi! 

(Y/N): Let's go! 

Back with Team RWBY's Group... 

RWBY: AGH! 

Goten: What? 

Trunks: Is that- DAD!!! 

Piccolo: Yes! And Gohan too! 

RWBY: GOHAN IS ALIVE?! 

You both appeared! 

(Y/N): BUU! 

Super Buu smiled evilly. 

Super Buu: At last, you. 

Goten: UNCLE (Y/N)! BIG BROTHER!! 

Trunks: YOU'RE BOTH ALIVE! 

(Y/N): I'm so proud of all of you. Especially you, Trunks. Good job, Son. 

RWBY: (Y/N), Buu killed them all. 

Goten: Yeah, we're all that's left. 

(Y/N): Everyone ... they- I swear, if you killed Dende, you are going to be my lunch! 

Buu: Oh, they tasted good. Especially the girl with the blue hair, she was the most delicious. 

You growled in anger as you heard Bulma's screams in your head. 

(Y/N): DON'T EVER TALK ABOUT BULMA LIKE THAT YOU STUPID BUBBLEGUM-COLORED ASSHOLE! 

You punched Buu, blowing his head off! 

He reformed with a smug look on his face. 

Buu: Did I touch a nerve? 

(Y/N): You're dead. 

Buu tried to hit you, but you caught his fist, and then stabbed him with the Z-Sword! 

Buu: WHAT?! WHERE DID YOU GET- 

(Y/N): You think I was dumb enough to leave a broken sword like this?! I repaired it before I got here! 

Buu tried to punch you, but Gohan stopped him and punched him in the head over and over and over! 

You then let go and- 

(Y/N): TEXAS SMASH! 

Buu had no chance of winning this time! You and Gohan were decimating him! 

RWBY: YEAH! GO (Y/N)! GO! 

Buu got up with his power increasing! 

Buu: I'LL SMASH YOU ALL INTO NOTHING BUT PASTE YOU INSIGNIFICANT FLIES! 

He caused a massive explosion and everyone was cleared out of the way in time! 

(Y/N): Everyone okay? 

RWBY: Yeah, more or less. 

Trunks: He just blew himself up! 

Gohan: IF he wanted to wipe us out, he would have destroyed the entire planet. 

(Y/N): I don't sense him either. It looks like he can hide his Chi. 

RWBY: So, is it the same with the Androids? Just perfect. 

Goten: Well, both Uncle (Y/N) and Gohan are stronger! 

Piccolo: How did this happen? 

Gohan: It's thanks to the Supreme Kai. 

(Y/N): The older Supreme Kai it is. Now hang on. 

You sensed around and picked up- 

(Y/N): YES! DENDE IS ALIVE! 

RWBY: HE IS! YES!

You all began to search around and found Hercule and his dog. 

Hercule: COME ON! IS THERE ANY WATER AROUND HERE?! 

Trunks: Hercule? Sheesh! How is that idiot able to survive anything? 

RWBY: Let's help him. 

(Y/N): Wait, who's talking in there? Ruby? 

RWBY: All of us. 

(Y/N): YOU TOO WEISS?! 

RWBY: We all sensed it. Hercule ... he tried to change Buu. And because of that- 

(Y/N): Let's grab him. 

You picked up Hercule as Goten grabbed the dog. 

Hercule: Wait, it's you guys? 

(Y/N): Hey again. I think we should be near- 

RWBY: LITTLE GREEN! 

???: OH COME ON! SERIOUSLY?! NOW OF ALL- 

(Y/N): There he is. 

You guys found Dende as quick as lightning. 

Piccolo: Dende, how did you escape? 

Dende: It was ... Mr. Popo ... he knocked me off the Lookout before he was transformed ... 

(Y/N): Mr. Popo ... 

RWBY: He really did have a heart deep down in there. 

Piccolo: It's a good thing he thought ahead. IF you were eaten, then everything would have been lost. 

Hercule: Hey wait a second, who's that kid over there? 

Trunks: Show some respect, Old Man! He's the Guardian. 

Hercule: SAY WHAT?! 

RWBY: Hercule ... you're not going to like this either but ... Videl ... Buu got her too. 

Hercule: WHAT?! NO! VIDEL! MY LITTLE GIRL! SHE CAN'T BE DEAD! NOT HER! NOT HER! 

(Y/N): Calm down, we can bring her back. 

Hercule: SERIOUSLY?! PLEASE TELL ME YOU ACTUALLY CAN! 

(Y/N): Yes, I m- SHIT! 

Buu returned and he had a smirk on his face. 

Gohan: Why does he look so confident? 

(Y/N): I don't know. 

Buu: HEY! You! 

RWBY, Goten, and Trunks: What? 

Buu: LET'S FINISH OUR FIGHT! 

(Y/N): NO! STOP! 

Gohan: We're the ones you're dealing with! 

Buu: I hate to leave things unresolved. I won't let anyone like those pests escape me! 

Trunks: What? Come on, all our aunts were kicking your asses now that they fused together. Hell, Goten and I were beating you so hard, you couldn't even move! 

Goten: HAHAHAHA! This guy is a nutcase! Come on Trunks! Let's straighten him out! 

Goten and Trunks: FUUUUUUUUUSION HA! 

They fused into Gotenks, and went SSJ3 immediately! 

(Y/N): THEY'RE SO AMAZING! 

Gotenks: TADA! WELCOME BACK THE GRIM REAPER OF JUSTICE, GOTENKS! NOW BUU, ENJOY YOUR- AAAAAAAAAAAAAGH! 

They both were enveloped in pink material, which you soon realized- 

(Y/N): NO! BUU STOP IT! 

Buu was going to absorb them! 

RWBY: NOOOOOOOOOOOOOOOOOOOOOOOOOOOO! 

Piccolo: WHAT IS THIS?! AAAAAAAAAAAGH! 

Piccolo was enveloped in it too! 

Dende: PICCOLO! 

(Y/N): BUU! 

Buu: HAHAHAHAHAHAHAHAHAHAHA! 

He absorbed both warriors and transformed as he was now wearing Gotenks outfit! 

Gohan: YOU MONSTER! 

Buu: BEAR WITNESS TO THE MOST POWERFUL BEING OF ALL TIME! I AM REBORN! 

Back in Shin's Realm... 

Goku: NO! They're not going to stand a chance! I have to do something !I- 

Old Kai: (Sigh) Yes, you're right Goku. You must go. 

Goku: What? But I can't! 

Shin: Goku can't go back to the World of the Living! 

Old Kai: Yes, I know. But, not unless I give you my life. That will bring you back for good. 

Goku: WHAT?! 

Shin: NO! GIVING YOUR LIFE AWAY TO A MORTAL?! THAT'S INSANE! 

Old Kai: If we don't do something soon, all of reality will be doomed. It's not just us at stake. I'm sure, she would agree with me too. 

Shin: ... Then let me have my life! I was the one who faced Buu before! It's my fi- 

Old Kai: Don't be so reckless! It's the duty of the old generation to let the new one endure. 

Goku: Thank you ... you're too kind. 

Old Kai: Well, see you around then. 

He focused his power, and then dropped dead. 

Goku's halo disappeared! 

Goku: Thank you, I swear, I'll use this life well. 

Old Kai got back up with a halo on his head! 

Old Kai: YOU BETTER! 

Goku: Okay, I'm- 

Old Kai: WAIT! 

Goku: Yeah? 

Old Kai: You can't go unprepared. Even with everyone there, you and (Y/N) are too powerful to fuse with anyone. 

Goku: What are you- 

He gave his earrings to Goku. 

Old Kai: These are Potara Earrings. Put one on your left ear. Gohan will take the right. As for the rest- 

Shin: Wait, you want them to- 

Kibito: Can they really fuse like that? 

Shin: Kibito! 

Kibito nodded as they handed over one of their own earrings to Goku. 

Old Kai: Another thing you should know is that the fusion is permanent. Once fused, you can never change back. 

Goku: Uh ... that would be a problem. If I fused with Gohan, would I have to go to school? And would (Y/N) be stuck with all of his own girlfriends in his body. That would complicate things ... especially when Bulma comes back and- 

Old Kai: THERE WON'T BE ANY TIME FOR THAT WHEN BUU DESTROYS IT ALL! GET GOING! 

Goku: R-RIGHT! 

Back with you and Gohan... 

You both were on the ropes as Buu overpowered you guys! 

(Y/N): Geez! He's just too strong! 

Buu: HAD ENOUGH?! HOW ABOUT TH- 

But then he was blown back! 

RWBY: WHAT?! 

???: Sheesh, where would you guys be without me. 

(Y/N): TIEN! 

Tien appeared. 

Buu: More of you annoying pests?! FINE! ENOUGH OF THIS! 

He generated a powerful energy ball! 

Buu: I'LL BLOW YOU ALL UP! 

(Y/N): NO! 

RWBY: ARE YOU CRAZY?! 

But then Goku appeared and punched him! 

Buu: AAAAAAAAAAAAARGH! 

(Y/N): GOKU! 

RWBY: GOKU! 

Gohan: DAD!!! 

Buu: WHAT?! 

Tien: Goku? How is this possible? 

(Y/N): He's ... he's alive aga- Old Kai ... he- 

RWBY: What? 

(Y/N): The Old Supreme Kai ... he gave his life ... so that Goku could come back. 

Goku: GOHAN! CATCH! 

Goku threw one Potara Earring to Gohan! 

Gohan: Huh? Wait, isn't this the Old Supreme Kai's Earring? What do I do with it? 

Just then Buu now had Piccolo's clothes! 

(Y/N): Huh? 

RWBY: It looks like the kids' fusion wore off. Piccolo is in there, slowing you down! 

Goku: Getting weaker Buu? I bet Gohan will be more than a match for you. 

Buu: HA! Good thing I plan ahead. 

Everyone: WHAT?! 

Suddenly- 

Gohan: AAAAAAAAAAAAAAAARGH! 

Gohan was absorbed! 

(Y/N), RWBY, and Goku: GOHAN! 

Buu now had Gohan's clothes! 

(Y/N): YOU ... YOU BASTARD!!!! 

RWBY: What do we do now?! It's hopeless! We can't win ... 

???: Pathetic. What do you think you're doing? Are you all warriors or not. 

Suddenly Vegeta appeared. 

(Y/N): VEGETA?! 

Goku: Vegeta, how are you- 

RWBY: YOU'RE HERE! 

Vegeta: If I let a bunch of clowns die, then I'll never be able to improve myself. 

(Y/N): Vegeta ... Buu ... he ate everyone! And he absorbed Goten, Piccolo, Gohan, and even Trunks! 

Vegeta: WHAT?! 

(Y/N): WE HAVE TO FUSE NOW! 

Vegeta: F-Fuse? 

Goku: There's no time to talk! WE have to do now before he- 

Buu: ENOUGH STALLING! DIE! 

Vegeta: WELL, WHAT ARE YOU WAITING FOR THEN, GIVE IT HERE! 

Goku: ALRIGHT! 

Goku threw one of the Earrings to Vegeta, and he gave you the others as you threw one to RWBY! 

(Y/N): Let's do this! 

RWBY: Right ear? 

(Y/N): Yeah! 

Vegeta: It's the one on the right then? 

They started putting them on. 

Goku: Oh, and I should tell you, once we fuse, its permanent. 

(Y/N): WHAT?! 

RWBY: SERIOUSLY?! 

Vegeta: YOU WAIT TIL NOW TO SAY THIS?! 

You all got them on, and- 

A bright light shone as you were pulled into RWBY, and Goku and Vegeta were pulled into each other! 

Buu: WHAT?! 

A being with long black hair, all the combined clothes of you, Ruby, Weiss, Blake, and Yang, and an array of weapons stood. 

RWBYY: Hello Buu. 

???: Looks like it's double trouble for you. 

RWBYY: We are not (Y/N), Ruby, Weiss, Blake, or Yang! We are RWBYY! 

???: And we are not Vegeta and Go- Goooookarot. 

RWBY: What the hell? 

???: That's weird. Why can't we say Gooooo- GOOOOOOOOOOOO- 

Buu: What are you doing? 

???: SIR! We are having a conversation with ourselves. Vegeta and Gooo- GOOOOOOO- WHATEVER! Just call us Vegito! And Son GOOO FUCK YOURSELF! 

Buu: STOP PLAYING AROUND AND- AGH! 

He was stabbed in the mouth! 

Vegito: Sir! We will fight you in a minute.