Akuma-kun (ONA)

At the Millennium Research Institute, strange and unsettling requests are the norm, drawing those who seek answers from beyond the ordinary. Leading this enigmatic office is Ichirou Umoregi, affectionately dubbed "Akuma-kun," a prodigy believed to emerge only once every ten millennia. Despite his remarkable intellect, Akuma-kun grapples with the mystery of his own lineage, embarking on a journey to uncover the truth about his origins.

Joined by his clever companion Mephisto III, Akuma-kun navigates a series of eerie and suspenseful cases that challenge their wits and test their resolve. As they delve into the world of the supernatural, the duo confronts the unknown, blending elements of mythology and horror in their pursuit of answers. This intricate detective narrative weaves together themes of identity and the mystical, creating an atmosphere that captivates as much as it intrigues.