Rei Batsubami retells when she was a servant treated like livestock by the Monobami clan and she received kindness from a lady visitor. The woman was eventually destroyed gambling with the clan and Rei swore revenge on them. Now in the present, Rei declare that she will win the Student Council presidential election and become head of the Monobami clan. After she reveals that she is using hundreds of votes collected from non-competitive students betting on whether she would win the election, the game continues...