To relieve the fatigue from working on a day off, a message arrives from his girlfriend, with whom he lives, saying she'll be returning to her parents' house for a week. Lately, their conversations have decreased, and their relationship has grown stale. Upon arriving home, he finds a beautiful girl in a school uniform sitting in front of his house, soaked by the rain. At first, he tries to ignore her and head inside, but seeing her pitiful condition, he grows concerned and approaches to check on her. Shivering from the cold, the girl eventually compels him—despite knowing he shouldn't—to invite her into his home, setting off an unexpected chain of events.