Tachibana blinked a few times. "...that would cause the quick destruction of quite a lot of societies, yeah," he nodded.

"In Hajime's case... the need is to fight, defeat others and be the last one standing. It often translates into a similar hyper defensiveness of those he cares about, as well as a reckless rushing in at the hint of there being something strong that's worth fighting," he added with a faint, almost fond chuckle. "He's gotten better at resisting the urge, but once he gets started in a fight..."

He trailed off, worry very clearly evident in his expression. Hopefully, Lyall had been able to keep Hajime in check, with both his and Kenzaki's absence... he wasn't sure who else left could.