女子高生・桂木弥子の父親が殺された。密室の惨殺事件。謎に満ちた事件は弥子の日常を混乱へ…。一向に捜査が進展しない中、悲しみにくれる弥子の前に脳噛ネウロと名乗る男が現れた。彼は言う。究極の『謎』を解きたいと…!!
High school girl Yako Katsuragi’s father was murdered. A murder case in a locked room. A mysterious incident throws Yako’s daily life into chaos… While the investigation is not making any progress, a man who calls himself Neuro, the man who bit her brain, appears in front of Yako, who is grieving. he says. I want to solve the ultimate “mystery”…!!