I think this may be one of the sleeper hits that many people may not be aware of, but Black Cat is definitely one of the most entertaining series I've read. The story is pretty straight forward, since it pretty much follows a story of a rouge Sweeper named Train Heartnet, who left an organization called Cronos. Train was the strongest assassin in the Cronos organization, but he decided to leave that lifestyle in pursuit of a free lifestyle. Although there are more things that will occur along the story, so I don't want to go any further in the plot.

The artwork is pretty good. The characters are very distinguishable, and the overall penmanship is very clean and easy to follow.

The characters aren't the most complex, nor original, but each one is enjoyable in their own way. My favorite are the characters Train, Sven, and Kyoko but the Character Eve does get development along the journey, and he backstory is fairly interesting.

Overall if you want a pretty short series to read with a lot of action and comedy, then this is great series to pick up.