Naoya Urushijima became a split personality after being traumatized when he was little. The other personality, Yuya, is the opposite of the gentle and serious Naoya, and has a violent and cunning personality. Yuya has been living a stable life without appearing but after knowing that Naoya fell in love and was about to be shaken by a mediocre boy Taichi Kanda, he assaulted Taichi and used his photos as a story. Threatens Taichi to associate with Naoya. Naoya, who knows nothing, is at the height of happiness dating a favorite person.