When the Chapman family was framed and bankrupted, Lucas chose to go to jail to protect his family. In prison, he founded the Venus Group under the identity of Mr. Chap. After he was released, Lucas concealed his identity and went to the Yorks to test Helen's sincerity as a matrilocal son-in-law. He was disdained by Helen’s grandpa and relatives. But Helen and her parents supported Lucas, which deeply moved him. He revealed his true identity and taught a lesson to the malicious relatives.
