Warmth was something never permitted in Do Kang-heon's life from the very beginning.

Instead of the love he should have naturally enjoyed, only sharp verbal abuse and cold glares clawed at him.

Even so, he foolishly craved affection, but those desperate struggles only became a nuisance that irritated his parents.

Eventually abandoned, the place he drifted into was the dark organization known as 'Jeya'.

He lived as Jeya's hunting dog, killing people one by one.

After that day, Do Kang-heon no longer begged for love, nor did he hold anyone in his heart.

Yet paradoxically, deep inside, he longed for a piercing warmth.

He wished to remain at the end of someone's kind gaze, to exist entirely within those soft eyes.

One day, while that terrible thirst remained unquenched, he set out to find the child of his target.

The place he arrived at was Haetsal Kindergarten in a small neighborhood.

"In a place like this..."

It wasn't as grand as he expected, nor was there anything worth looking at.

Leaning against the wall, he swallowed a hollow laugh and habitually put a cigarette in his mouth. Just as he was about to flick his lighter, a slender voice broke the silence.

"Excuse me, you can't smoke here..."

When he turned his head, a woman with a small frame was standing there.

The moment his eyes met hers—she, who seemed to be bathed in sunlight—his frozen heart began to beat strangely.

It was a sensation both foreign and burning.