The Scheming Prince's Lazy Consort

Before she transmigrated, she was an undercover agent. When a mission failed, she was discovered and killed, only to transmigrate into the body of a young lady from the prime minister's household. An accident brought her face-to-face with him. Yet when she saw him injured, she remained unmoved and left him to die. He swore he would find the woman who had dared to treat him that way. Fine… he would remember this grudge…