Based on a Japanese medical mystery novel series written by Mikito Chinen and illustrated by Noizi Ito. Mikito began writing the medical mystery novel under Shinchosha's Shincho Bunko nex imprint in October 2014, with illustrations by Noizi Itou (Suzumiya Haruhi Series). The 13th volume was released in September 2022. The novel has been republished by Jitsugyo no Nihon Sha since October 2023, with two new volumes-volumes 14 and 15. The series has a cumulative 3 million copies of its volumes in circulation.
