The art of controlling souls, who is whose puppet. Looking back on life, who won and who lost. Blood and tears blend together, and you grow old. What you gain and lose in your old age, everything is buried in everyone's heart.
A love-hate relationship, a disaster that shakes the world, a thought of good and evil, an irreversible miss for life after life.
"If you betray me, I will kill you with my own hands."
"Okay, if I betray you, I will die in your hands."
However, it was herself who she killed with her own hands in the end, and she was reluctant to do so after all.