Majin Tantei Nougami Neuro

The Demon Neuro has a raging hunger for ‘enigmas.’ 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? Find out in this disturbingly good murder-mystery series.
(Source: aerandria.net)