is the pen name of a Japanese man originally from Chiba Prefecture who is well-known as the original creator for the idea of the visual novel series Higurashi no Naku Koro ni and Umineko no Naku Koro ni. He is the representative member of the group 07th Expansion. His pen name originated from Reina of Final Fantasy V ... "07" in Japanese can be pronounced as "reinana", and "Ryukishi" means "dragon knight", referring to Reina's wyvern. The character Rena Ryugu from his work, Higurashi no Naku Koro ni, comes from Reina of Final Fantasy V as well. His illustration style is recognizable from the large hands he draws to people.