- Network CTC (JA)
- Genres Animation, Mystery
- Runtime 25 minutes
- Total runtime 9 hours 10 minutes
- Status Ended
The story follows a boy named Houtarou who is not assertive about getting involved, but was ordered by his older sister to join the classic literature club. In the club, he gets close to the truth about an incident, involving a female member's uncle, which happened 45 years ago. The energy-saving boy is joined by an inquisitive girl in this adolescent mystery.