It was December, late winter.

A cold wind lingered on the stairs outside the hospital. Guest sat on the steps, a hat pulled down low.

It was after your parents had left, saying they would be back in a moment. Believing their words, knowing nothing, you were waiting.

That was when the hospital doors opened.

Sitting in a wheelchair, equipped with various medical devices and aided by his parents, Seol Kihyun slowly made his appearance.

Born with a chronic illness, his world had always been quiet.

The world outside the window seemed close, yet it was always far away.

His life was transparent.

On a winter day when it seemed he wouldn't remain in anyone's memory for long, Kihyun's gaze stopped on a person sitting on the stairs.

One person was waiting for someone who would not return, and the other was stopping his gaze on someone other than himself for the first time.

That year's winter was exceptionally long. And no one knew.

That that brief moment was the first scene for two people who would spend the next five years together.

Later, whenever Seol Kihyun thought back to that day, he thought:

The person who first brought color to his transparent world was the child who had been sitting alone on those winter stairs, letting the snow fall upon them.