She lost her brother and parents who loved her the most, leaving only two younger sisters to depend on each other; he, whose life experience was complicated and confusing, met her quietly despite being ordered to do so. In the dark, she is obsessed with a piece of jade; he is only dependent on a piece of incense. In order to take revenge, she stepped into the dangerous world. Family affection, love, revenge... Where will she go? In such a world, they uncovered a shocking secret and a whole new world...