Former Chrono's Number XII and Currently a Sweeper
A former assassin who left the company after the death of Sachi, a independent female bounty hunter who befriend the cold hearted Train. Train becomes a "Sweeper" and swears not to kill anymore. He uses Sachi's gun techinques to capture many criminals. His personality has greatly changed, hes very outgoing and will often smile big. Though whenever he sees greed he can be seen lookinf like he did back when he was an assassin.
His nickname is "black cat" his eyes are cat-like, he drinks milk a lot, and he is seen with a black cat.
It is hinted that he had romantic feelings for Sachi but he says she was more of a very dear friend.
Eve has a one-sided rivalry with Train but he doesnt take her serious until much later in both the anime and manga. The first mission Train didnt kill his target was when he was tasked to kill Eve. He allowed Eve to live more than two times, she was the one to give him the collar.