Life Cheat: Swapping Bodies with My Best Friend's Brother

[Wealthy family + double cleanliness + wife chasing crematorium + imagination] Cai An'an, who has the most powerful best friend in the world, was arranged by her best friend Yao Xue to work as a secretary for her brother in her family's company after graduating from college. However, in an accident, Cai An'an switched bodies with her best friend's brother. They switched at will for several hours a day, which was really a headache. How should she face Yao Nian's money-worshiping girlfriend? What if Yao Nian is with his girlfriend during the exchange? What if after a certain exchange it can never be exchanged again? … It's a Buddhist writing, but it will definitely come to an end. You have to ask the protagonist how many words it will take to finish...