'Plastic Love Story' presents Coming of Age of three girls in Japan. Eri tries to remedy her anxiety and loneliness by being self-destructive. Rina relies on her relationship with boyfriend to compensate for her broken dream of being a ballerina. Kanae lost her brother when she was a child and seeks a solitary life in an abandoned hut by a seaside town. The three girls encounter three men in their lives. When they meet, their 'Plastic' love story begins.