Majin Tantei Nougami Neuro

Neuro, a being from the underworld who feeds on riddles and mysteries, comes to the surface world in search of the ultimate puzzle to satisfy his hunger. He finds one in Yako Katsuragi, whose father has been murdered, and offers to help her investigate. Neuro makes Yako act as a detective, and together they seek out mysteries to solve. Their partnership gives Neuro a steady supply of riddles while Yako works to uncover the truth behind her father’s death.