Mademoiselle can sense the presence of ghosts through her sense of smell. She feels out of place among her classmates at school but unexpectedly makes contact with a deceased senior student to solve mysterious ghostly legends circulating in the school.
Senior
The new transfer student, Mademoiselle, often wanders around the school sniffing walls, causing her classmates to think she's mentally ill, not knowing she possesses a special ability to smell ghosts!
Mademoiselle is intrigued by the legends circulating in the school, such as a princess' murder that occurred 50 years ago, the ghost of a wrongfully deceased gardener who lingers on the campus, and the pregnant female ghost frequently seen in the infirmary. She starts to make contact with a deceased senior student, and together they navigate between the realms of the living and the dead, and solve cases. During their quest for the truth, Mademoiselle also secretly investigates the mysterious identity of her company, uncovering the reasons for his demise and the purpose of his arrival.
