I, the Vicious Female Supporting Character, Massacred the Whole House with Blood

The day after I dressed up as a vicious female supporting character, Green Tea Sister cried and asked me to give her my fiancé. >I cut her chest open in public: "Since you want it so much, then give her your heart in exchange for it." My father was so angry that he wanted to use family methods to deal with me. >I smiled and hung his head at the door of the house: "Who is next?"