Mastermind

In truth, when Water Rascal led his pirates to take action, Happy had received a few notifications for a chain quest. His first quest was to protect Xu Hong so that he was not injured. Once he defeated the group of pirates, he got his second quest—capture the pirate leader, Water Rascal. Then, he triggered his third quest, which was to figure out the mastermind!

"You've got two choices. Either tell me about the person who is commanding you, or die!"

Happy might not have run into similar quests before, but he had already accumulated enough experience. He instantly figured out the key to the situation, and he even manipulated Water Rascal's cowardly nature, which had showed at the very end. 

Instead of wasting his breath for idle chit-chat, he used the most direct method to destroy the pirates' morale. When he spoke to Water Rascal, his voice was cold and emotionless, which immediately struck at the pirate leader's greatest weakness.