Ai Ōmaru (Kumamoto Pro-Wrestling), a kind-hearted detective, finds herself caught up in all sorts of cases… but the suspects are always men with a past, each harbouring their own secrets. With her meddlesome yet gentle nature—she simply cannot leave people in trouble—and influenced by the shōjo manga she has been reading since childhood, she cannot help but feel sympathy for these troubled men. The troubled men she encounters are also captivated by her warm personality and gradually drawn to her, and things start to develop…!?