A dangerously sweet romance entangled by a perilous contract between Kim Euihyun, a man pushed to the edge, and Yeo Taeju, a sly and calculating loan shark. Having given up on everything and prepared to end his life alongside his younger sibling, Euihyun is stopped by Taeju. In exchange for a home and a job, he becomes bound to a deal that demands his body, stepping into a relationship he cannot escape. Thus begins their tenacious entanglement. Euihyun is swept up in Taeju’s whims and his unreadable acts of kindness, while Euihyun’s unyielding nature only fuels Taeju’s growing fascination. What starts as an unpredictable connection spirals into a tangled web of obsession and anxiety, pity and desire—drawing them into a bond neither can break free from.