Karin's overprotective father foils her plan to spend Christmas Eve with Kiriya, but the two manage to meet anyway. Kiriya gives Karin a pair of diamond earrings, but Karin's friend and confidante Nanri warns her about the earrings' symbolic meaning as a gift. Meanwhile, Kiriya invites Karin to a trip to the mountains to observe the photo shoot of Shinji Takagi, a professional photographer and good friend of his late brother Yuji, but a rainstorm finds them alone together at a sleazy hotel room for lovers. Will Karin finally conquer her fear of intimacy and "go all the way" with Kiriya?