Comments of chapter undefined of Magnate Uncle: Starting from Supermarket Shopping with Ten Nephews

I think there is a mistake by the translator or the author as the reward for bringing his 16 neices shopping is said to be 12 million Yuan but in his bank account he only got 1,200,000 yuan

okay the whole mentioning his sister slender back while walking out of his room sounded wrong. I also have a sister but I wouldn't look at her and say slender back it would be my sister walked out of my room. Is it just me or do that seems weird, anyone else feels weird about the way he say his sister walking out?