If Yona didn't show up and save Changil, both mentally and physically, he would succumb to Mr. Choi's offer to take care of him. Changil's suffered years of poverty, isolation, forced prostitution. The gangr@pe is the last straw. Mr. Choi showed up at the very right time, offering him warm, safe place. Of course, Changil will take it. That's why, he asked Mr.Choi to kill him after he's bored of him.
If Yona didn't show up and save Changil, both mentally and physically, he would succumb to Mr. Choi's offer to take care of him. Changil's suffered years of poverty, isolation, forced prostitution. The gangr@pe is the last straw. Mr. Choi showed up at the very right time, offering him warm, safe place. Of course, Changil will take it. That's why, he asked Mr.Choi to kill him after he's bored of him.