Ep. 4: Ryusei demands a specific plant from the gardening club while Junpei reflects on their past friendship.
Aired on January 31, 2019

Ryusei intimidates the gardening club members by demanding a specific plant. Junpei chooses to intervene and assist the club because he and Ryusei were once friends in the distant past. The situation prompts Junpei to question the reasons behind their current estrangement and the significant distance that has grown between them over time. This encounter highlights the lingering connection between the two characters despite their present separation and the tension caused by Ryusei's aggressive behavior toward the club.
Episodes
- Ep. 1 · Junpei discovers a talking rock, leading classmates and teacher to a mysterious world with a sphinx.
- Ep. 2 · Tsuyoshi Suspects Yurio Is Hiding Something and Seeks Junpei's Assistance
- Ep. 3 · The group faces the consequences of failure and the loss of a member, necessitating mental sharpening to prevent recurrence.
- Ep. 4 · Ryusei demands a specific plant from the gardening club while Junpei reflects on their past friendship.
- Ep. 5 · A Masochist
- Ep. 6 · A character provides tutoring services to another character in exchange for tutoring.
- Ep. 7 · A Hole in His Heart
- Ep. 8 · Soshi's students investigate his past and the mystery of Shiro from ten years ago.