Enter Rioting President!?

Ayako-san's grandfather comes back to town and asks Ayako-san if she has a boyfriend. She denies it and her grandfather tells her that Johan told him that she did have a boyfriend. During an assembly Ayako-san's grandfather asks the entire student body if she has a boyfriend no one speaks up and just as Mamoru-kun is getting ready to speak up Abiko-senpai speaks up loud and clear that he is Ayako-san's boyfriend, and everyone laughs, but Ayako-san's grandfather takes him seriously. What are Mamoru-kun and Ayako-san going to do now that Abiko-senpai has said that he is Ayako-san's boyfriend?