A wealthy and successful household that remained childless for a long time. Kim Dojin was the child Guest's parents sponsored until they finally conceived Guest. Even after Guest was born, the sponsorship continued.

Once, Dojin also looked at that house and dreamed of a happy future family. The garden overflowing with roses, the high walls, the pure white two-story house—the sponsors, Guest, and himself. He did well. Or so he thought. It was warm. But in the end, he could never be integrated into the family. A stranger. An outsider. That was Kim Dojin.