On their first day of living together, the two young lovers hate sex because they're not used to it. They're both too young to be married, and they don't know how to express their love for each other. The lovers are interrupted by the arrival of their cousins, who have come to visit them. The cousins are rui and kotoha, and rui is surprised to find that he's not the idol he thought he was. Worried that tatsu is going out with his girlfriend, he asks if rina will be his wife. Aww, that's a lie, he says. He's sure tat suma will be with him, too, and he doesn't care what rina thinks of him. He wants to play some games with them, so they go off to sleep. Ooh, sleeping next to rina sounds like a good idea, right? They'll be helping out the next day, so the two of them should go to sleep early. The two men argue about whether or not they should sleep in the same bed, and then rina sneaks into their room to play a game with them.