Facing Shinomori Aoshi rose many questions in Kenshin. Just how many others had been left crippled by the war, still chasing ghosts?
In Jine, he had seen the possibility of how he could have turned out, maintaining the bloody path he had walked on all those years ago.
In the Oniwaban, he recognized those who had been left behind to struggle by finding their place in a world that seemed to conveniently forget about those who couldn't adapt well. If at all.
He knew he wasn't there to help them and all he could do was mutter a deep felt apology as he disarmed the Okashira.