Ha Sungwon was once a promising young professor from a powerful academic family. But after a scandal involving abuse of power, he lost everything. Drowning in gambling debt, he tried to run, only to be captured and dragged away. He wakes up in a luxurious but unfamiliar home. The owner? Yoon Sihyun, a former student Sungwon once tutored years ago. Now a grown man, Sihyun has turned into something far darker. He’s obsessed, possessive, and disturbingly gentle. Sihyun bought him, body and soul. Cornered by this twisted devotion, Sungwon tries to resist. But Sihyun discovers a secret Sungwon had desperately tried to keep hidden. That secret gives him even more control. “I love you, Professor. Stay by my side. Forever.”