During science class, Seki's attempts at constructing a hanko stamp from his eraser are hindered by his laid-back classmate, Akiyasu Uzawa.

Whilst participating in a disaster drill, Rumi notices that a robot family that Seki has brought into class is taking the drill more seriously than Seki himself, prompting her to take responsibility for them.

As Seki knits in class, Rumi watches him as an expert, but is surprised by some of his maneuvers as well as the final product.

During art class, Seki plays a miniature-sized game of golf on his worn-out desk, whilst Rumi's classmate, Sakurako Gotō, misinterprets the interactions between Rumi and Seki as romantic gestures.

During water safety lessons, Rumi once again becomes invested in the diligence of the robot family, becoming panicked when the child robot is thrown into the pool by Uzawa.

During lunch break, Rumi is a little disturbed by the manner in which Seki eats the octopus weiners he made for his lunch.