Teacher Hiwamura is invited to participate in the physical fitness test for PE. While she consistently posts shockingly weak scores, she ends up measuring her standing long jump alongside Mizuki Mukubayashi , a "super strong girl" with overwhelming physical strength...!? Meanwhile, Abikura is getting fed up with his older sister Akemi, who is always trying to spoil him. It seems his sister has found a new target for her "sweetness"...?

Abikura wants to show off Ms. Hiwamura's good qualities during their school trip . However,
Ms. Hiwamura is so weak that Abikura ends up having to look after her. Ms. Hiwamura, feeling responsible, tries her best, but in doing so, she ends up creating an intimidating aura. The two are at a loss, but they bump into each other in the open-air bath and find themselves alone together in the inn's closet, bringing them closer together...!?