One of four seasons, this is a Korean medical drama that I would definitely recommend if you like the crim aspect of Bitter Blood! While God's Quiz is focused on strange diseases to solve crime, it is also largely centred around a dark past for one of the main characters. While it has less comedy than Bitter Blood it is still a great watch!

Both stories have very strong themes of friendship as well as overlapping periods of time. Not only that, but the theme of saving one of the friends is also one of the main themes of both. While Orange more focused on the romantic relationship, Enoshima Prism is more focused on strictly friendship but contains a romantic aspect as well.