After escaping from the church, Wang Yu quickly left the area.
Knowing how wicked the Church of Light was, they had probably lowered Wang Yu's fame even more. It was not safe for Wang Yu to be wandering around the church.
Wang Yu thought to himself as he was running away, since they outcasted him for his fame, he must complete some quests to increase his fame if he wanted to join the Holy Faction.
However, from what he knew about the system, he would have to earn back at least 100 fame, for the Holy Faction to accept him.
After slaying the angel and commander of the Holy Faction, Wang Yu's fame in the Holy Faction was deducted by more than 400 points. It was only because he had declined the invitation from the Dark Faction, in addition to the quests he completed in Twilight City, that he had managed to keep his fame at about -200.