Sato and Nagi, who have been together for 5 years. It was supposed to be a date like any other. In the hotel suite, Saito suddenly took out an engagement ring and proposed to Nagi. "There's one more important thing I need to talk about" Saito, unlike his usual self. A heavy atmosphere flows. "I want you to sleep with other men before marriage" As I was swayed by Saito's persuasion, strangers kept appearing in front of Nagisa...
