High school student Ayumi kills herself and leaves behind a cryptic message that says "will be killed by boyfriend." Ayumi's classmates Satomi and Yuka investigate her suicide and quickly links her death to a popular cellphone dating simulation game called Keitai Kareshi. The main features of the game include a 'love gauge' that determines how well the player is faring and the ability to chat with other players. Satomi, Yuka download the game to their phones and begin interacting with their new ...