There are many works by sickly male or female protagonists. The following are some recommendations: << Exclusive My Hero >>: It tells the story of a young girl and two teenagers. One of the teenagers is the sickly type and is very infatuated with the girl he likes. 2. About My Reincarnation as a Slime: Although this is a game, it also involves a sickly plot. After the protagonist reincarnated as a slime, the girl he liked confessed to him, and he became extremely infatuated. 3 " My Hero Academy ": This is a manga. There is a young man called Ourmet. He is a sickly type character. He is very infatuated with the girl he likes and often gives everything for her. 4." The Follow-up to My Reincarnation as a Slime ": This is the follow-up to " My Reincarnation as a Slime ". It tells the story of the protagonist who continues to pursue the girl he likes after becoming a Slime. The above are some recommendations for anime and manga with sickly male or female protagonists. I hope it will be of help to you.