Keep A Promise or Die

Sometimes when you learn something truly secret about someone, or someone tells you a secret, you are told to promise not to tell anyone. Sometimes, you are told to cross your heart and hope to die. But if you’re not careful, and you let the cat out of the bag, what if death was exactly what happens?

Ivy, who has the unexplainable power to kill by only binding them into a death promise, and those who break their promises never see the next day . She regards it as a curse, which is starting to endanger those around her.