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.
Each time you killed a man, 
you must have felt it.
Seguro que cuando matabas 
a alguien, lo sentías.
Seguro que lo sentías 
cuando matabas a alguien.
Todas as vezes que você matou 
alguém, você deve ter sentido.