23 y/o but looks like 13. Train's outfits change a lot during the manga, and a little in the anime. Black Cat's appearance changes early on the series. In his time with Chronos the Number XIII would be dignified by adversaries in a long, black worn out trench coat long over a black dress shirt, and his black pants to denote his extremely suitable and fitting image. Overall, his appearance suited h
is dubbed nickname. When he became a sweeper, he wore a blue half jacket, with food rations on it, over a white t-shirt. And black, long pants with, two brown straps which belong to his holster, and plain, black shoes. Plus, his cat collar/bell. Anime
In the opening episode, he is seen on a mission assigned from Chronos. Train Heartnet is considered one of the more formidable Numbers throughout the anime. Train is tasked by Chronos to kill the genetically altered weapon, Eve. However, he fails to pull the trigger, and retreats when her guards arrive. Later, he is assigned for the same duty, and though he receives the opportunity, he doesn't kill her. This is because of Saya, a woman he had met just a night before, who opened Train up and taught him that there was more to life than killing. Train joins Sven and Eve on their sweepers missions, until he finds out Creed is not only still alive, but he has founded the Apostles of the Star. Sven and Rinslet are kidnapped by the Apostles, and Train faces Creed, but at the last minute decides to save his friends instead of taking revenge for Saya's death. Sven, attempting to hide Creed's bounty for 3 billion dollars, knowing that it would only increase Train's desire to face Creed again, goes to meet the Sweeper's Alliance. When Train finally meets the group, he notices that their leader, Glin, is actually a Chronos number. The two have a short fight, ending with them going to Kraken Island to find the Apostles. In the battle, Train faces Creed, who is seemingly immortal thanks to the nanomachines in his body. However, being that his imagine blade has now fused with his body, Train thinks to destroy the sword so that he
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Saya's spirit helping Train defeat Creed in their final battle. wouldn't have to kill Creed, knowing that that was not what Saya would have wanted, and that Creed is not worth him turning back into a killer. The plan works and Eve manages to extract the rest of his nanomachines. Train also takes part in the anime-only arc that involves Eve and the syndicate after her, known only as the Zero Numbers. Manga
At the beginning of the manga, unlike at the beginning of the anime, Train has been working as a Sweeper for more than two years with Sven. Train's storyline is generally the same: Rinslet asking Train and Sven for help but Train nearly kills Torneo before he leaves. Along the way, the two stumbled upon Eve, where she was still being trained to be an ultimate nano machined monster. After saving her from the clutches of Torneo, she decided to go with them. She appears to love Sven over Train after she and Train become rivals. Their rivalry begins because Train competes with her so Eve can further accentuate her abilities, even though Train doesn't take the rivalry that seriously. The events in the manga follow that of in the anime similarly, although the manga version of Train had learned that killing Creed will not bring Saya back, that revenge is pointless whereas his anime counterpart is fully set on killing Creed as payback for Saya's death. However, Railgun seems to only be featured in the manga.
