Majin Tantei Nougami Neuro

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 ‘mysteries.’ being dissatisfied with his current regime in hell, he’s come into the mortal realm in order to satiate his ever-growing appetite. the murder case of a young girl’s father seems to be sufficiently enticing for the demon’s needs… but what else might happen between these two?