The father of high school student, Katsuragi Yako, has been brutally murdered. The incident filled with mysteries drives Yako’s daily life into confusion… As the investigation progresses slowly, a man named Nougami Neuro appears before Yako saying that he wants to eat the ultimate “riddle”…!
The Demon Neuro has a raging hunger for āmysteries.ā Being dissatisfied with his current regime in hell, heās come into the mortal realm in order to satiate his ever-growing appetite. The murder case of a young girlās father seems to be sufficiently enticing for the Demonās needs… But what else might happen between these two?
