Kazuya's love life remains a mess. During his family's traditional trip to a spa resort, he still has not managed to move his relationship with rental girlfriend Chizuru Ichinose any further. After getting mixed signals from her, he decides to end their long-running act once they are back in Tokyo. His ex-girlfriend Mami Nanami, meanwhile, will stop at nothing to expose the pretense. When she suddenly brings the fake relationship crashing down in front of his family and friends, Kazuya has to act fast to salvage his social life in this romantic comedy.