The Miyoshi brothers have powerful regenerative capabilities.  They say that taking life is offering salvation, and in them Shungiku sees his own younger self.  Oooka, who knows the old Shungiku, is doubtful he can win the battle.
When I cut through it, we'll know 
if it's an illusion or not.
Sabremos cuándo algo es una 
ilusión o no cuando lo corte.
Sabremos si algo es una ilusión 
cuando lo parta por la mitad.
Quando eu cortar com minha espada,
 saberemos se é ou não uma ilusão.