Okay, now we're back in the middle of the action. We're introduced to the narrator's sis, Hibiki, who's just been having a little tiff with her boyfriend, Anji. Okay, so this isn't the first time we've heard about Anji's relationship with her step-sister, but this time, it's a little more serious. Hibsiki's got a problem: she's pregnant, which means she has to go to the doctor's office every day to get her period checked out . She doesn't know how to explain it to Anji, so she asks him to go with her to the doctors' office. He agrees, but he's not sure if it'll be a good thing or a bad thing. He's also not sure whether Anji is really in love with him, or if she just wants to break off the engagement. Anji can't figure out what's going on, so he tells her that his stepsister is engaged to another man, but she wants to keep it a secret for now. He tells her to go out with him instead, but Anji won't listen to him.