Crossing paths with bounty hunter Train is seriously bad luck for criminals!

Train Heartnet, also known as "Black Cat," was an infamous assassin for a secret organization called Chronos...until he abandoned that cold-blooded existence to live on his own terms as an easygoing bounty hunter. But is Train's past as far behind him as he thinks?

After surviving another attack by the Apostles, Train and his partners agree that they have to eliminate Creed. At Sven’s urging, Train finally reveals the details of his past: the nature of his relationship with Saya Minatsuki, the reasons for his quitting the Chrono Numbers, and the cause of his violent hatred of Creed.