Mochiron, Isharyou Seikyuu Itashimasu!

Break my heart, pay the price. "I'm breaking up with you!" My fiancé suddenly declares that he's breaking off our engagement! Apparently, he's got a crush on the countess who just transferred to our school, so now he plans to set me up as a villain to end it between us. So be it! But he'll have to pay me a hefty settlement fee!