Kamehameha

"I remember gohan taking in a child a while ago. That must be you." Master roshi said to Goku.

"My name is Goku. Do you know my grandfather?" Goku introduced himself and asked Master Roshi about his grandfather.

"Well. I didn't mean to brag about it. But I used to train him in martial arts a long time ago." Master roshi said.

"Son Gohan. I heard of that name before." Bulma said.

"Martial arts. No offence. I just wanted to know but Why are you still training in martial arts? I mean everybody seems to be using guns at this point." Goku said to the master roshi.

"It seems that Gohan didn't teach you anything." Master roshi said to goku.

"Teach me what? Is my grandfather hiding something important from me?" Goku asked.

"When one reaches a certain point of power level, bullets started to become irrelevant." Master Roshi said to Goku.

"Bullets don't affect the strong martial artist?" Bulma said in shock.

Even she started to become interested in what master roshi was speaking about.

"How old do you think I am?" Master roshi asked.

"Between the age of Sixties or eighties" Goku answered.

"Not a bad guess. But I am 300 years old." Master Roshi said.

"Impossible. No humans can live that long. You are human right?" Bulma asked.

"Or are you by chance using the dragon balls to stay a long life.....or do martial arts extend your life?" Goku asked.

Master roshi nodded at the second part.

Of course, he didn't live this long because of training martial arts for a long time but because he was eating a certain herb that can extend his life.

But he wanted Gohan's grandson, the grandson of his pupil to appreciate the beauty of martial arts.

So he lied to the boy.

"Can learning martial arts make me more beautiful?" Bulma asked she was starting to become a little interested in the information that master roshi was giving out.

Goku still didn't look that much interested in martial arts.

Goku was obsessed with training his body but that doesn't mean he is interested in martial arts.

"Still not interested. Fine, I will show you what a martial artist could do." Master roshi said as he removed his shirt.

"You are a skinny old man," Goku commented on Master roshi's skinny body.

"Grandson of Gohan get out of the way." Master roshi said to the goku as he pushed him back a little.

"Don't tell me are you gonna do the Kamehameha?" The turtle asked.

"Kamehameha?" Goku and bulma asked.

"Huff." Master Roshi breathed in the air and his skinny body was inflated with air and became muscular.

"Watch carefully boy." Master roshi said to Goku.

"Kamehame" Master roshi started to say as he put two of his hands together.

Pure blue lights started to appear between master roshi's hands.

"How?" Bulma questioned.

".....what is happening?" Goku was also speechless.

"Haaaaaaa." A blue beam appeared out of master roshi's hands and destroyed a nearby mountain.

"What The fu..." Goku was now questioning the reality that he was living in.

"How did you even do that?" Bulma asked master roshi.

"How long did it takes to master that move?" Goku asked master roshi.

"It takes me around 50 years to fully master the Kamehameha." Master roshi said.

"50 years? Then forget it." Goku immediately gave up.

"Aren't you interested in blowing up mountains?" Bulma asked Goku.

"But 50 years of training seems too much time for me to just focus on one thing," Goku said.

"Well. If you change your mind let me give you my address." Master roshi said as he started to write something on the sand.

It was his address.

"Why are you writing that on the sand?" Goku asked.

"Because I don't have a pen and paper to write my address down." Master roshi said to goku.

"I wanted to ask something. Why do I need to know your address?" Goku asked.

"If you changed your minds about martial arts come and find me. I will train you personally." Master roshi said to goku.

"Don't worry. I won't." Goku answered back.

"Don't worry. I will take the picture of the sand writing for you." Bulma said as she pulled out a camera from a capsule and took a picture of the address.

"So how is son gohan? Is he still healthy?" Master Roshi asked Goku about Gohan.

"Well... He is... How do I put this in words? In a much better place? I guess." Goku said.

"Wait. You mean that Gohan is dead?" Master roshi said in shock.

"Yeah. He died in an unfortunate accident." Goku said.

He didn't want to reveal the fact that he might be responsible for Gohan's death.

And master roshi destroying a mountain in front of his eyes just makes clear that he can not talk about the reason for Gohan's death to him.

"I see. I still can not believe that he died. He was my best student." Master roshi said.

[This is getting awkward.] Bulma thought.

She then looked at goku who seems like he was asking for her help.

"Well look at the the time it's getting dark. Come Goku let's continued our journey. We are already behind schedule." Bulma said to Goku.

"Ah. I see. Well, then I will be seeing you in the future." Goku said as he bowed his head and leave master roshi wondering on the sandy shore.