Certain man drove car on highway.
His wife and daughter sat down on rear seat his son in the seat next to the driver.
He showed son whom he talked to smile.
There was existing family anywhere.

But their car received an intense shock.
He watched bloody son in consciousness that faded.
He stretched out hand to son, but lost consciousness before hand reached son.


When he regained consciousness, there was in unknown room.
There thought him to seem to be hospital.
He who raised the body from bed knew that accident happened in his body.

"My body grows big"!
He to see mirror knew that his face had changed.

Doctor with nurse talked to him who was confused.
The man asked doctor.
"Where is my wives and children?"
"Your wife and daughter passed away"
"Oh my ......"
The man was about to be stunned, but noticed meaning of words of doctor.
"Is son safe?"
"Please come if you can move"
Man who followed doctor knew that son was in ICU.
"Naoki!"
Man said to doctor.
"Please save son"

On the next day, man was made to hear unbelievable fact from doctor.
"You don't have assets paying medical cost"
"What? I have house and savings;!"
"I explain"
Thin man in black clothes said.
"All your property was lost"
"On the contrary, you would die in record"
"It is mistake"
"Your uncle checked on your corpse, and funeral has been already over, too" "
"Your house has already passed to hand of another person"
"Your savings were drawn all"
"Your uncle paid back his a large amount of debt for your property after your funeral"
"Therefore your property and family register were lost"
"damn it!!"
He remembered that his uncle proposed debt to him.
And as for his having quitted it.

"Be sorry, but cannot help having you leave if payment isn't possible."
"What happens to son?"
"Can't take responsibility about it"
"Please save my son"
"Only have you leave if you can't pay medical cost"
Thin man continued talking.
"But it should be very difficult"
"Can you who lost family register get proper work?"
"Can prove that oneself lives to you?"
"Does your uncle return your property?"
"Can your uncle return your property?"
"Besides, your uncle runs away"
"Can you find uncle?"
"How much time do you take to achieve all of them?"
"We can't wait"
The man was depressed by told talk.
"I will do what from now on?"
"If you cooperate with us, don't request medical cost"
"What?"
"Your present shape depends on our new technology"
"If you cooperate with our experiment, let's guarantee your life"
Man didn't have time to be troubled.
"What should I do?"
"At first have you train"

And three months rose.
Man obtained muscle as he was incomparable with three months ago.
"Great! Our new technology got result!"
"What did you do to my body?"
"You don't need to know it"
Stout man in black clothes asked you a question.
"Director. Do shift to the second phase by project?"
"Yes, be problems what I choose as object of comparison"
Director switched on television.
Change channel of television in sequence.
He kept eye as a certain newsmagazine show.
Yokozuna who won the championship at 5 continuation was reflected.
He heard the strongest words that caster said.
"Is he strongest?" Must teach them who is the strongest

Director sent man into sumo world with money.
Director said to him.
"Be Daikaiki, and turn into monster according to the name, and your name is arrogant, and be violent and be destructive"
"At first defeat him"
Commanded man - Daikaiki - to do practice game with komusubi.
Story of Daikaiki began in this way.