Male protagonist, a university student at Hayamikawadai University who lives alone. He is Fujiang's neighbor and childhood sweetheart. He helps dispose of Fujiang's split body entities by burning them in an incinerator. He has an aversion to meat due to dealing with the split entities. He writes novels and keeps a household shrine. He is unfazed by Fujiang's beauty and temper, often being blunt and dismissive toward her. His nickname from Fujiang is Kāyè.
