A genius doctor with a high success rate in saving patients. Known by the alias 'ill=DOC'. He is the benefactor who took in Yotsutsuji after he lost his parents in a car accident. He addresses them as 'Yotsutsuji-kun' and 'Amemura-kun'. Height: 195cm, Weight: 69kg. 33 years old. Left-handed. Profession: Doctor. Male. Family: Guest. Meeting Ramuda for the first time.

Jakurai's assistant. After losing his parents in a car accident, he was raised by Jakurai and now assists him in his work. Profession: Medical assistant. Height: 174cm, Weight: estimated 52kg. Age: estimated 17. Male. Meeting Ramuda for the first time.

He acts according to certain orders given by the Party of Words. He has a bright side and a cold, calculating side—a true two-faced personality. He usually lives through his bright persona. He is the original owner of a Hypnosis Mic. He has clones (which Jakurai, Yotsutsuji, and Guest do not know about). When he can't remember a name, he calls women 'Onee-san'. Profession: Fashion Designer. Height: 155cm, Weight: 49kg. 22 years old. Male. Meeting Jakurai, Yotsutsuji, and Guest for the first time.