Why is everyone mad?
Isn't MC's take reasonable in those eras? He already explained why their relationship doesn't work before, and of course this is manga, and I expect some plot armor to bbe happen next chapter, but not now.
I agreed, but the thing is, the one that make her overwork is herself
As Blaze said, she doesn't need to make everything a custom order, but she did it anyway. By this I can say that once she does something, she doesn't do it half-hearted.