In Sanpo Village, where departures outnumber inhabitants, the Yeom siblings – Chang Hee, Mi Jung, and Ki Jung – yearn for an escape from their uncertain existence. Their quiet world is disrupted by the arrival of Mr. Goo, portrayed by Son Suk-ku, a mysterious figure burdened with secrets and a somber demeanor. As whispers spread about his solitary habits, Mi Jung, played by Kim Ji-won, the shyest sibling, musters the courage to engage with him, drawn by curiosity and perhaps a shared sense of isolation.