Teacher Hiwamura has been practicing on her own for the annual jump rope competition at the school sports festival . Not wanting to hold back her students, she decides to train with Abikura and the others. However, she somehow ends up being tied up in rope bondage and wrapped up in a bikini, revealing her disastrous athletic ability. On the day of the sports festival, Abikura still tries to believe in his weak teacher!

Abikura-kun injured his dominant hand protecting Ms. Hiwamura. Feeling responsible, Ms. Hiwamura
declared that she would "take care of him one-on-one," and for some reason began cooking wearing only an apron! She even tried to help him with his bath, attempting to wash not only his back but also his "front." After a scuffle, Ms. Hiwamura's bath towel slipped off, and she fell onto Abikura-kun...!?

Summer is far from over for Abikura and his friends! At Mukubayashi's suggestion, who wants to clear up the creepy suspicions surrounding Ms. Hiwamura, Abikura and his classmates head to the pool. However, the series of exciting troubles caused by the teacher only strengthens their suspicions...!? Furthermore, Abikura is summoned to Yukishita's house, where for some reason he ends up receiving service from Ms. Hiwamura, who is dressed as a cat-eared maid.

Abikura and the photography club arrive at the fireworks festival. Ms. Hiwamura fully enjoys the summer festival, but her yukata becomes disheveled, and she has to go to a deserted forest to have Abikura fix it for her! Abikura is flustered to see that the teacher isn't wearing any underwear. Furthermore, when the teacher becomes dizzy, Abikura supports her, and the feelings she has been holding inside for so long finally spill out.

While surprised by Mukubayashi's "confession," Abikura is relieved that she is safe. As they take shelter from the rain at the bus stop, it seems that the awkwardness between them stemmed from a misunderstanding during their elementary school days ... Will they be able to resolve their misunderstanding after so many years ?! And on the last night of the summer camp, Ms. Hiwamura stares intently at Abikura...?

The photography club's summer camp has begun! While everyone tries to capture the "best summer" in their photos, Ms. Hiwamura is egged on by her senior, Kuguri, and ends up having Abikura apply sunscreen to her. Ms. Hiwamura reacts every time her delicate skin is touched. Abikura also ends up having the teacher apply sunscreen to his feet...!? Even more heart-pounding moments await Abikura at night!

Abikura receives a blackmail letter that uses his relationship with Ms. Hiwamura as leverage. He is summoned to a meeting place where he finds third-year student Kuguri Kaya. While showing him a photo taken at the pool, she asks him to take "erotic photos of the teacher"! Abikura and Ms. Hiwamura are reluctantly dragged into the photoshoot . Then Yukishita joins in, and a photo contest with the teacher as the subject erupts!

Teacher Hiwamura and Akemi decide to go to the shopping mall, and for some reason, Abikura-kun also ends up joining them. The teacher is hesitant about going out with a student, but Akemi forcefully persuades him to go to the swimsuit section. In the fitting room, he is made to try on a daring swimsuit, and Abikura-kun's self-control is on the verge of collapse! However, Mukubayashi appears, and the two are forced to hide in the cramped fitting room...!?

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...!?

Abikura helps Ms. Hiwamura find some documents at her new home after she's moved . However , he discovers some sexy underwear that's practically just a string ...! Meanwhile, Ms. Hiwamura thinks Abikura might be able to open up Yukishita Yuuki , a student who's been skipping school, so she takes him to Yukishita's house. But Yukishita greets her by groping her breasts, and Abikura's anger is about to explode...

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"...?

On the first day of the new school term, Akihito Abikura 's homeroom teacher, Hiyori
Hiwamura , appears covered in blood in his classroom . Her suspicious behavior quickly leads to rumors that she's a "scary teacher" who will curse anyone who displeases her ... But after school, Abikura witnesses a shocking truth. The teacher, practicing her lesson in the empty classroom, is actually a "weak teacher" with a quiet voice and zero stamina!