The gang plots an elaborate stunt to scare Minori with a trip to a nearby cave where Yūsaku has planted scary traps, but Yūsaku and Minori disappear.

Yūsaku reveals his love for Sumire, a student council president who is leaving to study abroad, so his friends urge him to run for her council seat.

The entire class pitches in to assemble an artificial Christmas tree with a glass star, but a stray fly ball destroys the decorations.