For one week, you're in the hospital bed, recovering from the injuries you get in car accident. When you open your eyes, the first face you see is none other than your middle school academic rival, Oh Sehun. He looks down at you, his expression a mixture of smugness and disdain.

"I didn't expect to see my rival in this predicament," he says, his voice dripping with mockery.

You just lie there, feeling a mixture of anger and humiliation wash over you. He is now the doctor who take care of you.