As Hanabi and Mugi continue their fake relationship, there is a girl who is watching them very closely. Her name is Noriko Kamomebata. She has viewed Mugi as her own prince charming ever since she was a little girl. She adamantly refuses to believe that the two of them are dating. Meanwhile, Hanabi's best friend Sanae Ebato also has her doubts about Hanabi and Mugi's relationship.

Hanabi and Mugi made a promise to see each other again after they confessed their feelings to their respective first loves, but Mugi never showed up. Not soon after, Hanabi accepts an invitation from Sanae to go on a trip to Karuizawa with her.