The room of Onmura Yuki (Kiyohara Goya) welcomed Shiraishi (Yoshikawa Ai) who came home from get off work.The two cooked and had dinner together, talked about Tokunaga Hiroyuki (Sano Yuuto)-related topics in casual chats, and enjoyed a relaxed time of mutual trust.Then, Yuki couldn't help but yawn.This scene made Shiraishi feel nostalgic.Influenced by Shiraishi, Yuki also reviewed her life diary...

——Go back to July two years ago.Yuki, Hasegawa Airi (Mikami Ai), Wada Toranosuke (Mochizuki Ayumu), and Hiroyuki are reviewing for the exam in an empty classroom at the university.Shiraishi is not here.At that time, Shiraishi was busy chasing stars - the male idol group “F1RST SENSE”. He was watching their performance on the stage of the shopping mall with a small audience.

That evening, the five of them gathered at the family restaurant. According to Toranosuke's suggestion, the five of them planned to go on a trip together during the summer vacation.The four of them happily proposed places they wanted to visit, such as zoos, aquariums, etc.However, Shiraishi has concerns about traveling with Toranosuke and Hiroyuki.The reason she revealed it to Yuki and Ellie was because she couldn't help but yawn in front of them...

That night, RIM, the “F1RST SENSE” member Shiraishi admires most, suddenly announced his graduation!The devastated Shiraishi bought tickets for the graduation concert.After learning that the tickets were purchased online, Yuki and Ellie were puzzled by Shiraishi's behavior...