Sensei is on his way to his counselor office, when he is stopped by Makoto. Since she doesn't wear her glasses Sensei teases her by pretending that he has never met her before. He stops when she mentions that she will be wearing a swimsuit and asks her if she is joining the swimming club. She explains that it's the class's turn to clean the pool and she wants his help since she needs to go to work later. When he asks where she works again, she replies that it's the same place he nearly assaulted her. Before Sensei can say something she brushes it off as a spur of the moment but expects his help for being so forgiving. He has no problem with that but staes that he can't help her directly since he has no swimsuit. Makoto corrects him by stating that she left one in his desk. She demands him to change and meet her at the pool.
Once Sensei arrives at the pool, Makoto explains to him that they only need to clean the perimeter around the pool. He asks if he can say something mildly perverted to her before they start. She agrees to it but is confused by the fact that he asks for permission this time. Sensei compliments how hot she looks in a swimsuit and that her figure is both flawless and arousing. She agrees that these perversions weren't that bad and forces him to start cleaning.
A short while later Sensei is confused why Makoto is the only one assigned to clean the pool when it's a task for the entire class. Makoto explains that two others were assigned to help. Those two are Yumi, who would've never appeared for this, and Chika, where Makoto is aware of her difficult living situation and that Chika has certain obligations to attend to. Therefore Makoto didn't remind her so Chika has more time for that. When Sensei asks what's wrong with her living situation she states that, as he is now, he should be able to get the information from Chika by spending more time with her. He compliments Makoto’s generosity and selflessness causing her heart to skip a beat. She explains that despite being seen as a roadblock to an easy school life she doesn't mind helping her classmates to ease their burden when it's necessary. While Sensei shows concern for her well-being, it's lessen for Makoto by the fact that he is staring at her ass the entire time. She implores him to stop since they're still on school grounds.
Instead of stopping Makoto asks him when he started to see her as a girl. She was wondering that since he only saw her as his assistant for a long time but recently, out of nowhere, he frequently gazes at her. While Sensei tries to explain this with her working at a porn shop, but she noticed this change even before he found her there. She doesn’t mind the shift in their relationship but is afraid of just being toyed with by an adult. Sensei assures her that he has no intentions of hurting her which makes it even worse for him. Makoto tries to explain that this isn’t worse but before she can finish her thoughts she suddenly "loses her balance", falls into the pool and shortly after grabs Sensei's ankle making him fall in as well. As they stand inside the pool Sensei's penis is touching Makoto. Due to this she states that they need to have a talk soon. Both of them don't like talks, yet she claims that this one will be enjoyable for them.