This plot introduces their unmotivated homeroom teacher, Yamashita-sensei, shifting the comedy toward a student-teacher dynamic. Character designs for the teacher look visibly tired and rumpled, mirroring her lazy attitude. The soundtrack uses light, casual acoustic guitar strumming to build the relaxed atmosphere.

Specific Moment: The teacher checking her phone for notifications mid-class while completely ignoring Kanaka's antics in the back row.