The Tale of Kowa Clinic
Jun has a best friend named Tom who lives in New Zealand, but he has never met him. The two enjoy chatting on the computer. Jun tells Tom that he hit a home run in baseball, but in fact this is a lie. Jun has an illness that prevents him from exercising, and he can't have surgery until he becomes an adult. During the chat, Tom reveals that he plans to go to Japan next month, and Jun worries that his lie will be exposed. Then Black Jack appears, examines Jun, and explains that he can cure his illness, but...
Aired 14/03/2005EP 19 - The Tale of Kowa Clinic

Black Jack (TV)
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' life (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: Anime News Network)