In the world of Goku ... 

Five whole years had passed since the 23 Tenkaichi Budoukai, where Goku had defeated Piccolo. 

We see a humble farmer doing some work in the fields when he spotted something crash land nearby! 

Farmer: AGH! It's a meteor! Or a UFO! I got to see it! 

He got into his truck to investigate and saw- 

Farmer: WHAT IN THE?! 

It opened up and out popped a man with long black hair. He had a tail just like Goku did when he was a kid! 

Raditz (A Soldier of the Saiyan Army! Very cruel and sadistic!) 

Raditz: Finally, I made it here after 5 long years, I bet that- WHAT?! 

He saw a bunch of life signs. 

Raditz: DAMN IT KAKAROT! YOU FAILED! Everyone on this blasted rock is still alive! 

Farmer: Hey, who are you? 

The farmer took out his boomstick and pointed it at Raditz. 

Raditz: Hmm ... 

He checked his device over his left eye. 

Raditz: Your power level is 5? HA! PATHETIC! 

He stepped towards him. 

Farmer: HEY! STAY BACK! I'LL SHOOT YOU! 

He fired his gun, but Raditz caught the bullet and threw it right between the farmer's eyes. 

Raditz: Just as I thought, this planet is full of fucking wealkings. 

He then picked up a bigger power level. 

Raditz: That must be Kakarot! 

He flew off to see it. 

On another hand... 

Piccolo: AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAARGH! 

Piccolo was destroying several dinosaurs in his path, including one with- 

Piccolo: I'LL SHOW THEM ALL! SON GOKU, (Y/N) (L/N), AND THEIR STUPID FEMALE FRIENDS! NO ONE MESSES WITH ME! MANKANKOSAPPO! 

He fired a powerful energy blast from his fingers, and killed his opponent. 

Piccolo: Perfect. This time victory will be- WHAT?! 

Raditz appeared before him. 

Raditz: Wait a minute, you're not Kakarot. 

Piccolo: What are you supposed to be? Do you have a death wish? 

Raditz: HAHAHAHAHA! YOU BEAT ME?! PLEASE! YOU'RE A FUCKING WEAKLING! 

Piccolo: WHAT?! HOW DARE YOU! I AM DEMON KING PICCOLO AND I- AGH! 

Raditz hit Piccolo and he coughed up blood. 

Raditz then stomped on his head several times. 

Piccolo: What the hell is this guy? How is he this powerful!? 

Raditz: You have no chance of beating me. Now I'll end your existence with- HUH?! 

He picked several powerful readings! 

Raditz: Higher readings? What's going on here? I have to see. 

He takes off leaving Piccolo to angrily grovel. 

Piccolo: What kind of person is that? The earth is doomed. What planet am I going to rule if- I can't believe I'm going to do this, but, I need help. 

At Kame House... 

You and the girls arrived to see- 

Bulma: Hey you guys! 

(Y/N): Sup Bulma? Still beautiful as ever. 

Bulma: (blushing) Honestly (Y/N), you're the greatest guy I've ever met. And considering all the other guys I know in my life, it's- 

Weiss: Crazy? 

Bulma: Exactly. 

Ruby: Well, it feels great to be back at old Kame House again, I wonder how Master Roshi is doing these day- 

(Y/N): HIYAH! 

???: AGH! (Y/N)! IS THAT ANY WAY TO TREAT YOUR OLD MASTER?! 

You hit Roshi in the face for trying to perv on Ruby. 

(Y/N): I can see you haven't changed at all, Master. 

Ruby: Yep, same old Master Roshi. 

Blake: Any one else here? 

Krillin: You called? 

Yang: There's Krillin. Still training hard little buddy? 

Krillin: You know it! 

(Y/N): Say, what about Yamcha, Tien Shinhan and Chiaotzu? 

Krillin: Oh, Yamcha went to start a career in baseball. 

Yang: Well, it's going to be easy for him since he's not fighting. 

Yamcha Owned Count: 80... 

Roshi: Gonna need a Senzu for that one. As for Tien and Chiaotzu, they went to restart the Crane Hermit School. 

(Y/N): I'm sure they'll do much better without Shen and Tao in their lives. 

Ruby: Yeah, those two were evil jerks! 

Bulma: And what about Launch? 

(Y/N): She's living back at the mansion. Her more violent side seems to have calmed down a lot more. That's why I train her on the side. 

???: HEY GUYS! 

Goku appeared from the Flying Nimbus! 

(Y/N): Goku! 

You and Goku Bro shook like 5 years ago! 

Goku: (Y/N), wow, you're getting even stronger than ever! 

(Y/N): I could say the same to you. 

Team RWBY: GOKU! 

They hugged him. 

Yang: Man, you're getting bigger than ever Buddy. 

Ruby: Yeah! I missed it when you were such a cute little kid! 

Goku: Oh speaking of. Gohan! 

A little kid came out from behind him. 

Son Gohan (Goku's 5 year Old Son!) 

Bulma: Who's he? 

Krillin: Did you take up babysitting? 

Goku: This is my son! 

Everyone: SAY WHAT?! 

(Y/N): You ... have a kid? 

Weiss: That means that you ... and Chichi ... did ... you know. 

Goku: What? 

Yang: You know, Bow chika bow bow. 

Goku: What are those noises you're making? 

Blake: Oh God, he's a parent. 

Ruby: Aww! He's adorable! Hi! 

Gohan: Hi, are you Aunt Ruby? 

Ruby: EEEEEEEEEEEEEEEEEEEEEEEEEEEEE! AUNT RUBY?! 

Ruby tackle hugged Gohan! 

Gohan: AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAGH! 

Ruby: YOU'RE SO FREAKING CUTE! I LOVE YOU ALREADY!!! 

(Y/N): RUBY STOP! YOU'RE SCARING HIM! 

Ruby: Oh! Sorry! 

She let go of the little fella, and he was shivering in fear. 

Goku: HAHAHAHAHA! Yeah, Gohan's not exactly the bravest kid. 

Roshi: Gohan? Oh, you named him after your grandfather! 

Goku: Yep! 

(Y/N): Wait, he's got a tail. 

Ruby: TAIL?! 

Bulma, Roshi, and Krillin: DID YOU JUST SAY TAIL?! 

Weiss: Goku, has Gohan ever looked at the moon when it was full? 

Goku: Nah, we go to bed pretty early at our place. Why? 

Weiss: No reason. 

(Y/N): So, is he strong? 

Goku: Well, I know he has it in him. But when I try to train Gohan, Chichi has a fit. She says that the world's peaceful so who needs martial arts. And then she puts him to study. 

Weiss: Well, I wouldn't argue against her. 

Blake: Agreed. I mean (Y/N) fears her. 

(Y/N): Have you seen her angry up close? It's not pleasant! 

Ruby: And you have the Four Star Ball on his hat! 

Goku: It's all I've got left of Grandpa so I put it there. I also have the Three Star and Six Star Ball at our place. 

(Y/N): Oh that's- Uh oh. 

Ruby: What? 

(Y/N): Someone's coming. Someone strong! 

Goku: Yeah, I sense it too. 

Then Raditz appeared! 

Raditz: Long time no see Kakarot. You look just like our father. 

(Y/N): What? 

Krillin: Who's this guy? 

Yang: I'll get him. Hey asshole, how would you like t- 

Raditz: Woman, you have no right to fight a man's battle. 

Yang: WHAT?! WHY Y- 

She tried to hit him, but Raditz sent her flying skyhigh! 

Yang: AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAGH! 

Everyone: YANG! 

Raditz: HAHAHAHAHAHAHAHAHA! HOW PATHETIC! IF SHE'S THE BEST YOU HAVE, THEN THAT MEANS I CAN SQUASH ALL OF Y- AGH! 

You punched him in the stomach! 

Raditz: WHAT TH- 

(Y/N): TALK NOW! 

Raditz's tail came out as you did that. 

Goku: WHAT?! 

Ruby: T-Tail! 

Yang: AAAAAAAAAAAAAAAGH! 

Yang landed down on the ground. 

Yang: WHY YOU- Wait, is that a tail? 

Raditz: Don't you remember Kakarot? 

Goku: My name is Son Goku! Not Kakarot! 

Raditz: Did you get brain damage or something little brother?! 

Goku: Okay, I did fall and hit my head once, but I don't know what's going on? 

Roshi: (Sigh) Goku, Gohan told me that whe he found you, you had a tail. But you were wild too. That is until you fell down and hit your head in a gourge. 

(Y/N): You don't say. 

Ruby: What do you want from Goku? 

Raditz: It's in the name of our people. You see Kakarot and I, Raditz come from the race of the Saiyans! 

Weiss: Saiyans? 

Raditz: Correct Earth Woman. You see, we're a mighty race of warriors. And Kakarot here was sent here to eliminate all life on this planet! AND YOU WOULD HAVE DONE IT IF YOU LOOKED AT THE FULL MOON AND BECAME AN OOZARU! 

(Y/N): Wait ... so- 

Blake: They can turn into those monsters?! Not just Goku?! 

Raditz: Kakarot, where's your tail? 

Goku: I had it removed a long time ago. Now listen here, I don't care if you're my brother. This is my home! And you're not welcome here! 

Bulma: Yeah! You tell him Goku! 

(Y/N): We're not going to let you do what you want Raditz! 

Raditz: Even though our home planet was lost, my partners and I still have found a planet sold at a very high price! I mean, imagine the carnage Little Brother! The honor we could restore to our peop- 

Goku: I WOULD RATHER DIE! 

Raditz: Fine! Suit yourself! 

Goku charged at Raditz, but Raditz easily overpowered him! 

Ruby: GOKU!! 

Gohan: DADDY!!! YOU LEAVE HIM ALONE YOU- 

Ruby: GOHAN NO!!! 

Ruby got Gohan to safety! 

(Y/N): YOU ASKED FOR IT! 

Raditz: FINE! COME AT ME EARTH WORM! I'LL CRUSH YOU IN A- AAAAAAAAAAAAAAAAAGH! 

You easily overpowered him with- 

(Y/N): DETROIT SMASH! GUM GUM BAZOOKA! FIRE STYLE: FIREBALL JUTSU! 

Raditz: EARTHLINGS CAN BE THIS POWERFUL?! 

Yang: YOU HAVE NO IDEA ASSHOLE! WE'RE JUST GETTING STARTED! 

Raditz: FINE THEN! 

He left and- 

Ruby: AAAAAAAAAAGH! 

He beat up Ruby and grabbed Gohan! 

Gohan: WAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAH! 

Raditz: I'll just take this brat to be my protege! That is if Kakarot comes to join us. 

Goku: GOHAN! 

Raditz: Enjoy the last moments you have human filth. For tomorrow, YOUR PRECIOUS ROCK BECOMES SPACE DUST! HAHAHAHAHAHAHAHAHAHAHA! 

He took off! 

Gohan: DADDY! HELP ME! 

(Y/N): YOU ASSHOLE! HOW DARE YOU! 

Krillin: That guy ... he calls himself a warrior. 

Ruby: Dang it. We have to stop him. 

Blake: But how? 

(Y/N): We grab his tail. Saiyans' weaknesses are their tails. 

Ruby: OF COURSE! Just like Goku had years ago! 

(Y/N): Alright, let's go! 

???: No, not without me. 

Piccolo appeared. 

Goku: PICCOLO?! 

(Y/N): YOU! 

Ruby: Wait! Piccolo, you want to help us right? 

Piccolo: Yes, I met him. He is a threat to all of us. That is why I offer my help. 

Ruby: I KNEW THERE WAS GOOD IN YOU! YOU'RE SUCH A SOFTIE! 

Piccolo: WH- I- LISTEN HERE RUNT! I'M NOT INTERESTED IN BECOMING A GOOD GUY! I'M DOING THIS TO RULE THIS PLANET! IF IT'S DESTROYED, I CAN'T GET WHAT I WANT! 

Goku: If that's the case, then we have a common enemy. 

(Y/N): Time we get going then. 

You and the girls began to fly. 

Roshi: WHAT?! You're all flying? 

Ruby: (Y/N) taught us how to fly! 

Weiss: He copied the technique of the Crane School flying. Which Goku and Krillin learned. So, we happened to learn it too. 

Blake: You coming Goku? 

Goku: Yeah! Let's go! 

Piccolo: I never thought I'd be working with my sworn enemies. But I'll take what I can get. 

And so our 7 brave heroes- 

Piccolo: WATCH IT! 

Najimi: I think you mean 6 brave heroes and Piccolo- 

Right, so our 6 brave heroes and Piccolo set off to stop Raditz and save Gohan!