At the cafe Yoshitake and Lune visit, Yoshitake has a fateful reencounter with his childhood best friend, Sakuya Soga. From that day onward, something changes within Yoshitake. No longer is he trying to get down and dirty with Lune and Haruka, and even Rima's brazen attempts to seduce him go completely ignored! As all the girls in his life learn of his past, Yoshitake goes out on a date with Sakuya, where he is unable to say no to her nasty commands because of a promise he once made to her...