In one family, the male protagonist's father owed a lot of debt because of gambling, and the male protagonist's mother broke up with the male protagonist's father because of this. Later, the father died of illness, and the mother did not care about the male protagonist. He only left the male protagonist to live with his grandparents. Later, the grandparents were gone, and the creditors targeted the male protagonist...
Once, a creditor came to demand a debt, and the male protagonist had no choice but to run into the forest. There was an old castle deep in the forest, and a vampire lived in it.
Purpose: Mainly write about what happened to the male protagonist when he was a child, and what happened after he came to the castle.