He is annoyingly self-righteous, but he is the son of a wealthy man who does whatever he wants without caring about the feelings of others. To him, women are just toys. He was so indifferent to everything, but he caught his attention. He had always thought that it was a supreme honor for a woman to be attracted to him. In fact, many women do think so because he has money. But Yi's indifference and disdain greatly hurt his self-esteem. He began to take revenge on Cin and wanted Cin to surrender to him like other women.
Tortured again and again, injured again and again, he remained indifferent, without a single tear. The injuries he suffered until the end seemed to be torturing him. Finally, he admitted his feelings, but they were already in pieces.