Description:

Black Jack is an "unregistered" doctor with a clouded, mysterious past. He works with his little assistant Pinoko (who has a massive crush on the doctor), dealing with medical cases not very well known, which can be strange, dangerous, or not known at all. But he is a genius, and can save almost any of his patients' lives (as long as they have the money for it, that is), and is known to many around the world, especially to those of medicine and science. He's a man of science himself, and does not believe much until he has seen it, yet it is many times he is surprised by love and nature often overpowering the science he bases his life in. (Source: ANN)

Description:

For Shinonome Keisuke, high school student Kotone Tasuku is the only person in the world whom he can communicate with. Once a brilliant surgeon, Shinonome passes away at a young age, only to wander the world as a ghost, a ghost that only Tasuku can see and talk to. When an accident leaves Tasuku’s hot childhood friend Takeuchi Mai’s younger brother severely injured, the only way that he can survive is if Shinonome and Tasuku work together to become the most unusual and possibly talented pair of emergency surgeons the country has ever seen! (Source: MangaHelpers)Included one-shot: Volume 1: Little Big Doctor (pilot)