Demon Concubine and Poisonous Woman

She - codenamed Flower Demon, is as beautiful as a flower and as cruel as a demon. One second I am friends with you, and the next second I will turn into a monster because of your betrayal! The boss of the assassin world in the 21st century, unrivaled. But because of the conspiracy of his trusted sister and lover, he murdered her. Leave with hatred! "If there is an afterlife! I would rather have you be wiped out than to be destroyed!" What I saw when I opened my eyes was a miniature version of myself - a baby! All her muscles and veins were sealed, and it was her adoptive father who helped her break the seal and become an unprecedented genius! Younger sister? Except for my adopted father, all my relatives in this life are nonsense! Spouse? What about dreaming? Impossible! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.