After his parents are murdered, Bin is taken into the care of relatives. He begins to act strangely, the new occupants of his house experience horrific nightmares, and a mystery unfolds as a terrible secret is revealed.
A South Korean exchange student named Ji-Ho gets to know Kaede and Yusuke at a Japanese university. Kaede and Yusuke can’t seem to honestly convey their feelings for each other, so Ji-Ho takes it upon herself to play matchmaker while teaching them the Korean formula for successful romance.
Yeonhee suddenly disappeared after her SNS account was hacked. Detective Ui-chan, who feels there is a secret behind Yeon-hee's death, who appears as a corpse after a while, investigates the people involved and learns the truth behind Yeon-hee's death.
