I only remember that the content of the novel is that the man's surname is Xia. He likes a woman who turns out to be his sister. He seems to be from the Sicilian gang in Italy.

Boss met a woman who looked exactly like his sister. She was a piano teacher in a kindergarten and was brought to Italy by him. She got pregnant and they didn't know about it. In the end, she was aborted by the elder of the gang. Only then did they know that she had a child. Later on, the man ran away with the woman and returned to the gang for various reasons. He let the woman go and couldn't help but go to see her again. At that time, her stomach was bulging. He knew that it was his child. The woman lied to him and said that it was someone else's child. The woman was brought back to Italy by him and later gave birth to a pair of twins. Something happened after that. The man asked the woman to run away with the child and said that he had prepared a boat for them. In the end, the woman put the child on the boat and ran back to look for the man. She found it in the sea of fire and the child drifted into the forest. They found the child in the forest and got married in the church in the forest. The priest was also a gang leader. His wife and children were all dead. He gave the man a watch that seemed to be able to summon his old forces. He built a castle for the woman. Later, the priest died. They found the grave of the priest's wife and son and buried them together. I can't remember the rest. Please help me and tell me the name of this novel. The other part was that the woman's mother was sick and needed most of the money. She had no money. The doctor saw her beauty and asked her to accompany the doctor for a night before he was willing to save her mother. She ran to the male and female protagonists to borrow money, but in the end, the man secretly transferred the money to the male protagonist and did not let her know. Later, the man taught the doctor a lesson and seemed to have changed to another doctor. However, her mother still could not be saved and died. She saved the man and blamed him. This is a side story of the novel. Please tell me the title of the novel.