[ Yep, this Ishimaru is definitely dangerous, especially with a sword in hand. Something does seem different here, the question of how did he survive that fatal blow via Yamada? ]

From what we know, Ishimaru-kun does not have a brother. However if you say this is the Mastermind, I had thought it would not be the easiest task to deal with them. [ Definitely sounds crazy, as expected. ] It is not possible for anyone to steal a person..

The fact he is in possession of a weapon, makes him even more dangerous to us.