Ep. 8: Amazoness joins Kou's class and uses hypnosis to manipulate him into marriage.
Aired on November 22, 2010

An Amazoness arrives at the riverbank and enrolls as one of Kou's students, openly admitting her romantic feelings for him. She orders her Tengu subordinates to hypnotize Kou, altering his attraction so he agrees to marry her. Nino enters a rivalry with the Amazoness to demonstrate her superior devotion to Kou. Although Kou is deeply under the spell, Hoshi chooses to intervene and halt the hypnosis. Ultimately, Kou's genuine emotions allow him to break free from the mental control, resolving the conflict caused by the Amazoness's schemes.
Episodes
- Ep. 4 · P-ko directs a movie with Kou while the group hosts a haunted house event
- Ep. 5 · Manga Artist Captain Reveals Past While Billy and Jacqueline Celebrate Anniversary
- Ep. 6 · Shimazaki Investigates Nino While Nino Receives a Tape From Her Parents
- Ep. 7 · Residents prepare for Venus trip while Kou and Hoshi compete for Nino's attention during checkups.
- Ep. 8 · Amazoness joins Kou's class and uses hypnosis to manipulate him into marriage.
- Ep. 9 · Kou delivers a package from Shiro's wife while P-ko hosts a riverbed tea party
- Ep. 10 · The group diets to meet the rocket's weight limit while Tetsuo and Tetsuro compete in muscle strength.
- Ep. 11 · Arakawa Bon Festival and Amazoness's Secret Plan to Confess Her Feelings to Hoshi
- Ep. 12 · Mayor hosts tournament for riverbank strength with wish prize