Yin and Yang

In this world, there is never love without reason, and there is no hatred without reason. Even if there is a ghost, there must be a reason for him to pester you, and there must be a reason for you to be afraid of him. You have to tell me, who is this ghost? What happened between you and him before? Remember that ghosts will not come to you for no reason, only you will come for no reason... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.