"I’ll pay a high price,” said Seokju, the boss of the Taeho faction, to the crippled servant Ajin, marking the beginning of their relationship born out of a misunderstanding one night. “Like you have a leg disease. I have insomnia. Shall we help each other as patients?” Using Seokju’s insomnia as an excuse, Ajin fell asleep in his embrace, becoming accustomed to his body temperature. “I want to work at your place until I die.” “Then just stay here. Here, in my room, sit on my knees. Let me bring the world to this room." But doubts keep sprouting, despite sealing the cracks of happiness. “Ajin, you can’t leave this room until you’ve paid off all your debts.” Now, this room became Ajin’s world, yet he found solace in the fact that Seokju didn’t abandon him.