Ep. 9: The Black Sphinx proves to be a formidable opponent as puzzles intensify
Aired on March 7, 2019

The group faces the Black Sphinx, a powerful adversary that presents significant challenges. As the series of puzzles becomes increasingly difficult, the overall situation grows more dire and grim. The narrative focuses on the escalating tension and the severity of the obstacles the characters must overcome. Viewers are left to consider how the team will manage this worsening development and cope with the mounting pressure from their formidable foe.
Episodes
- 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.
- Ep. 9 · The Black Sphinx proves to be a formidable opponent as puzzles intensify
- Ep. 10 · Shiroyama appears unaffected by the Black Sphinx, but a dark secret emerges.
- Ep. 11 · A new riddle challenges the classic Sphinx puzzle with the question of Spudio's identity
- Ep. 12 · Tutoring a Decade Later