It's iroha's birthday, and he's planning to hang out with a girl. He's not telling anyone about it, and it's kind of a bummer. ki asks i if he has a girlfriend, and she says he does, but she doesn't know if he'd be a good match for her. She's also worried about him being too serious, since he seems to be interested in what his younger brother does. Aww, that's a little weird, right? . .