Ep. 11: Arakawa Bon Festival and Amazoness's Secret Plan to Confess Her Feelings to Hoshi
Aired on December 13, 2010

During the Arakawa residents' Bon Festival, Hoshi and the Amazoness team up to separate Kou and Nino. The plan fails as Amazoness falls for Hoshi but cannot confess directly. Instead, she constructs a beach shack upstream and stages a rescue scenario. She arranges for Hoshi to save her, using the opportunity to give him a good luck charm. This elaborate scheme allows her to express her affection indirectly without the vulnerability of a direct confession, leaving the outcome of her romantic intentions uncertain.
Episodes
- 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
- Ep. 13 · Maria defeats Sister with insults and forces Kou and others to serve as sheepdogs.