MC: Izumiya Ryouta
Heroine 1: Miyama Airi (White)
Heroine 2: Ichinose Yuria (Blonde)
Heroine 3: Kuroki Rui (Black)
Heroine 4: Tanaka Kanade (Black + Megane)
Heroine 5: Himesaki Nozomi
★ Ryouta is spending some alone time with Rui. During that moment, Rui asks him to be her student council vice president if she becomes president. Ryouta’s unsure and doesn’t think he’s worthy. But Rui threatens to stop sending him selfies if he says no. Since Ryouta’s kinda addicted to Rui’s selfies, especially the ones showing her belly button, he really can’t say no.
★ Airi and Yuria are already waiting on the rooftop because Rui and Ryouta told them to go ahead while they bought snacks. But when Rui and Ryouta show up, they totally forgot to buy anything. So Rui takes Airi to go buy food, and Ryouta is left with Yuria, who starts asking what he and Rui were doing alone. She also brings up the drama club incident where Ryouta pushed Rui. Ryouta explains it was just a misunderstanding—he wasn’t acting out of lust but trying to save Rui’s perfect image when she forgot her lines.
★ After school, Rui goes to her club, and Yuria has a festival meeting, so Airi ends up walking home with Ryouta. On the way, she asks if she can stop by his house. Ryouta’s mind instantly goes to ecchi stuff—he even buys two boxes of condoms, thinking something might happen. But when they get to his place, Airi just wants to study. She’s worried about getting bad grades and having to take extra classes.
★ Airi really likes how Ryouta explains things, and Ryouta wonders how she even got into their school since she seems to struggle. Airi says she lives with her mom and chose this school because it’s cheaper. She studied super hard to get in since the only other option was a school full of bad kids, and she didn’t want to end up there. But now that she’s in, the classes are tough.
★ Feeling thankful for Ryouta’s help, Airi starts asking about his future. Ryouta says he hasn’t thought much about it and even wrote something silly on his career form. Airi says he should try being a novelist and asks what kind of story he’d write. Ryouta jokes that he’d write about an isekai MC who does whatever he wants with big-boobed heroines. Airi calls him a perv and notices him sneaking peeks at her chest. She warns him not to look at Rui or Yuria that way. But surprisingly, she tells Ryouta he can look at hers—as long as he calls her name. Ryouta happily agrees.
★ A few days later, Yuria comes to study with Ryouta since Airi has work. When she shows up, Ryouta’s mom totally misunderstands and thinks he brought home a secret girlfriend. Ryouta clears things up and says Yuria’s just a friend. She gets excited seeing his manga collection and asks to read one. But when she pulls out a book, a box drops—yep, it’s condoms. She asks if Ryouta did anything with Airi. He panics and says no, though he admits one is missing because he keeps it in his wallet “just in case.” Yuria laughs and takes the box away. Then Tanaka barges in—Ryouta’s mom sent him to spy and make sure nothing ecchi happened.
★ After exams, Rui gets first place again. Airi and Yuria both do well too. To celebrate and decide who gets to hang out with Ryouta first during summer break, they play rock-paper-scissors. Ryouta thinks Rui will win, but Airi comes out on top.
★ Airi invites Ryouta to her grandma’s house in the countryside to hunt horned beetles. When they get there, Ryouta notices there’s no bus in the evening. Airi casually says they’re staying overnight. Ryouta is thrilled but a little worried if Airi’s okay with it. Turns out she doesn’t mind at all. They prep beetle bait near a mountain. At one point, Ryouta stops Airi because she’s wearing stockings, but loses interest when he finds out they’re not hers.
★ They sleep in the same room because there’s only one guest room. At dinner, Ryouta is served stamina-boosting food. He gets the vibe that Airi’s grandma really wants grandkids soon. Before bed, Ryouta gets a message from Rui, who already found out he’s staying over. He tries to lie and say their beds are apart, but Rui already got a pic from Airi showing their beds right next to each other.
★ In the next event, they go to a swimming pool—Ryouta, Rui, Airi, Yuria, and Tanaka. No cheesy romance stuff happens. The funniest thing is Tanaka getting picked on by little kids.
★ In the last event, Ryouta is asked to come to school in uniform during summer break. He hopes something spicy will happen with Rui, like the “punishment” she mentioned for lying. But nope—she just invites him to watch her race, with school supporters cheering.
★ After Rui finishes the first race, Ryouta sees how serious she is and finally decides to become vice president for real. Deep down, he also hopes Rui keeps sending him ecchi selfies, especially the belly-button ones.
★ On the way home, Ryouta bumps into a well-known first-year girl—Himesaki Nozomi. She’s Rui’s rival in the election. Nozomi says she knows about Ryouta and Rui’s secret relationship. If he wants her to keep quiet, he’ll have to become her “dog.”