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.

Whilst Rumi is off school with a cold, Goto observes Seki as he plays a game of paper sumo involving a robot opponent, assuming he had a fight with Rumi.

As the class watches an instructional video, Seki plays a game of "Shogi vs. Chess" in the dark, with Rumi eager to help the shogi pieces as they struggle against the black chess pieces hidden in the darkness.

Seki puts on a blindfold and plays a game of fukuwarai, which soon evolves into a twisting story about family life.

With their desks pushed together in order to share a printout, Rumi attempts to ignore Seki as he performs some card tricks, hoping to prompt a reaction from her.

Seki brings various pairs of glasses to see which pair looks the best on him.

Seki draws a flip book comic in his textbook, which he even records sound effects to, leaving Rumi curious about the finished result.

Rumi learns of a surprise belongings inspection, believing it to be the perfect chance for Seki to get busted. However, she becomes concerned about the robot family, especially when Seki seems to make no attempts to hide them properly.

An OVA bundled with DVD box volume 2.