I Was Happy...Yüto's class decides to do a cosplay cafe for the school festival. Yüto asks Haruka to go to Akihabara with him to research cosplay costumes. Unknown to Yüto, Haruka had previously made a promise to her father to meet one of his clients, however she decides to go with Yüto to Akihabara instead. Gentö is furious when she does not show, and finds them in Akihabara, but once again Akiho arrives just in time to save them. Later, Haruka makes cookies and goes to give them to Yüto who is working on the cafe at school, and is shocked when she finds Yüto in a compromising position with Shiina.