Obsession is a slow-burn, mafia romance that tells the story of a Korean mobster who got obsessed with his classmate while he was on a mission to get a degree for his legal cover identity. The story shows the journey of his toxic obsession, stalking that goes out of hand when he forcefully marries her in order to own her, to claim her. But then something happens which turns his world upside down and changes his entire perspective of love. this is the story of him eventually understanding l...