Chu Nan asked tiecang bear to be merciful. That's because these people will work for him in the future.

it is also necessary to kill the three leaders.

because it's impossible for Chu nan to spare his energy to manage the sea wolf regiment. He still has a lot to do. Until now, he hasn't been on the right track in refining weapons and alchemy. He also ensures that when he needs this power, he needs to follow his command. Therefore, any faction and so on must be eliminated. Besides, he can still spare a place after killing the three leaders , you can let other people compete, or you...