The Taisho era of early twentieth century Japan provides the atmospheric backdrop for this collection of eight short manga stories, each weaving elements of mystery and the supernatural into the fabric of everyday life.

A young woman from a respected family is on the verge of an advantageous arranged marriage. When she decides to give away her pet parrot, she unknowingly sets off a chain of strange and inexplicable events. The title story, Oumu, explores the unexpected consequences of this seemingly simple act, revealing hidden connections between the woman, the bird, and forces beyond normal understanding.

Another narrative, Rabbit, follows a man with an intense phobia of rabbits who is pressured into a formal marriage interview, known as an omiai, with a woman who adores them. The meeting of his deep-seated fear and her innocent passion leads to a tragic and haunting outcome. In Lost Item Search, a young wife becomes completely absorbed in searching for a lost object. Her obsession grows so consuming that her husband, initially merely curious about her behavior, finds himself driven to a desperate and shocking course of action.

The collection, published by Shogakukan, was notable for being author Akiko Hatsu's first work to appear in a magazine aimed at a young adult male demographic, having previously built her career in publications for female readers. The stories are self-contained, typically focusing on a small cast of characters whose lives become entangled with peculiar mysteries, often involving the supernatural or the dark corners of the human psyche, all rendered with Hatsu's characteristic elegant and fantastical artistic style.