Rika moves in with Naoya and the others, and insists that sleeping in the same room with him in a non-sexual fashion should be completely permissible. Naoya agrees, but only if all the girls get to take turns sleeping in his room in a non-sexual fashion.

Shino moves in with the trio, intended to begin work on breaking them up. Saki tells everyone stories about how they met in middle school., which involved Saki making Shino play video games. It turns out Naoya also has a story about how he met Shino...

Saki tells Naoya that Rika’s apparent crush on him is only the result of her being in heat. She insists that this is a real thing, and Naoya buys it.

Nagisa had insisted on supporting Saki on the hot spring vacation, but when Saki confronts her about it, she begins to speak her mind.

Rika, who’s outed as a popular MeTuber, insists on dating Naoya. When he rejects her, she decides to try to live at his home along with the other two.

Rika kidnaps Naoya after drugging the others, hoping to seduce Naoya while the others are away. Naoya firmly rejects her advances, but this only inspires Rika to keep trying harder. Naoya then realizes escape is the only way out.

Saki returns to Naoya’s place and plays some games with Nagisa, who is utterly horrible at it. They notice that a gaming MeTuber seems to have the same uniform that they do.

Naoya and the girls depart for Okinawa. The trip gets off to a bumpy starts when their plane encounters turbulence, and Naoya panics. Once they get to their vacation home in Okinawa, the girls put on their swimsuits.

Shino and Naoya are stranded on an uninhabited island, and Shino has ended up naked again. Has the time finally come for Shino to confess her feelings? Meanwhile, Saki and the others have realized that Naoya and Shino are missing.

Saki realizes Rika is serious about Naoya, and begins frantically looking for ways to keep her from joining their relationship.

Shino is frustrated and furious about Naoya and Saki's failure to kiss at the fireworks festival. Saki wins a bunch of camping gear and a campsite coupon, so everyone decides to go enjoy a camping trip.

Everyone's at the fireworks festival, but Naoya and Saki have been separated, foiling Shino's plans. Instead, Naoya has ended up watching the fireworks with Nagisa despite their plans to the contrary.

Saki really wants to go to the beach, but conversation about the trip is interrupted by Mirika drying her bra out where Naoya can see it. One thing leads to another, and the girls are soon competing to see whose bra excites Naoya the most.

Shino suddenly announces that she's transferring schools. She has a huge fight with Saki, who isn't convinced, but Shino still can't confess her feelings. But it was Rika who gave her the encouragement she needed. Rika had sent Naoya a message asking him to join her at Shino's private beach. Confronting Naoya and Saki again, Shino tearfully confesses her feelings for him. How will Naoya and Saki respond to Shino's big confession...?! And what will the relationship between Naoya and Saki, Saki, Nagisa, Rika, and Shino be...?!