Ep. 7: Kou teaches science to Nino and the Metal Brothers while managing Stella and P-ko's romantic developments.
Aired on May 17, 2010

Kou begins his class with only Nino and the Metal Brothers present. He teaches science after a difficult start, but Stella interrupts with destructive behavior until he calms her using projects. Later, Kou worries about P-ko obtaining a driver's license. She persuades the Village Chief to get a new haircut, which makes her fear other girls might fall for him, revealing her own love for Kou. As Kou questions common sense, he is spotted by former company subordinates.
Episodes
- Ep. 3 · Hoshi forces Kou to confess about Nino, leading to a date invitation and a river visit.
- Ep. 4 · Kou and Nino’s date involves a river rescue and Stella’s arrival
- Ep. 5 · Kou retrieves vegetables from clumsy P-ko after returning injured Sister
- Ep. 6 · Kou wins the musical duel and accepts a teaching role for the Arakawa residents
- Ep. 7 · Kou teaches science to Nino and the Metal Brothers while managing Stella and P-ko's romantic developments.
- Ep. 8 · Kou’s employees visit, leading to a fake company charade and Nino’s surprising kiss.
- Ep. 9 · Stella's anger toward Maria leads to a duel while Hoshi reveals his musical past to Kou.
- Ep. 10 · Kou faces a chaotic fire drill and learns of land development under the bridge.
- Ep. 11 · Kou attempts to secure bridge rights by competing with Seki despite family opposition