Introducing the juvenile street leveller from Spain, Elio Sanchez(from the Elio the Fugitive manga, set in Spain...) Who has killed only his own brother, but defeated at least 1000 people in a period of three years! This kid can kill with a single punch, so he's pretty potent.

On the other end of the Khazan is Izo Motobe, who can't kill with a single punch. But he has another dozen ways to get the job done.

Elio Sanchez VS Izo Motobe!

Who survives?