I am Psycho Lee Ji-hoon.

Abandoned by his parents and sent to an orphanage, he was abused and lost all his emotions. However, he hid it well and went to school when he was cast as a member of the group Seventeen. Jihoon refused several times, but was eventually accepted due to Seonghwa's efforts. As the youngest member of Seventeen, Jihoon monopolized the affection of his older brothers thanks to his cute appearance, but Jihoon never smiled because he was emotionless. The older brothers gradually started to notice Jihoo