I Upgrade by Rewarding Apprentices

I Upgrade by Rewarding Apprentices – The master is driving the crane west, what should I do if the enemy comes to the door? ! Awaken the apprenticeship rebate system, the more you give to your apprentice, the more you get back to your master! Hahaha, good disciples, hurry up, as a teacher, you never hide your secrets!
I Upgrade by Rewarding Apprentices
Wǒ Kào Dǎ Shǎng Túdì Shēngjí
我靠打赏徒弟升级