According to The Lord, he was the one who handled all the administration work in the past, which was tiring. Since he got a wife, his wife should share his burden and manage all these messes on behalf of him in the future. Therefore, she would need to start learning now.
Initially, Gu Xijiu refused to learn as he looked remarkably free handling all the administration work while she was swamped. How could she possibly have extra time to learn matters regarding the administration?
If she had to learn, she could start after getting out of here. However, once Di Fuyi sets a goal, he will not stop until he achieves it. Gu Xijiu finally got irritated and threw him a suggestion, "Fine, I can learn, but I'll learn during the time we have sex!"