Sign for Revenge, Stay for Love

Colin, adopted son of the Bishop family, is drugged and framed by his adoptive brother Kyle and fiancée Jenna. He wakes up in Empire Group CEO Aman's bed and loses everything. Jenna calls off the wedding, Kyle steals his shares, and his foster father throws him out. Colin signs a contract marriage with Aman for revenge. They take down the enemies, and between the schemes and the battles, Colin falls hard. Then he discovers his foster mother murdered his birth mother and Aman's father helps her. Together, they send both to prison. In the end, Colin and Aman exchange vows in the cathedral, not as a deal, but as a promise.