Please Give Me a Tutorial on How to Survive After Making Things Difficult for the Male Protagonist.

To be changed. He takes it as his own duty to make things difficult and oppress the male protagonist, but looks on indifferently on the inside and works hard to improve his performance^ Shou (Cui Di) x Waiting for the opportunity, he is very ambitious at a young age and is eager to surpass his senior brother. Finally he surpasses his senior brother^Gong (Song Jin) Entertain yourself. Concept: #precipitation