To be in a disguise.
He refused to go, his sisters demanded he go, so the compromise was the disguise.
Oh.. So it being a masquerade wasn't enough of a disguise already
But wait, didn't his brother dress up as a girl too? What's his reason?
Do you think the brown-haired sister is a boy? He had an older brother (who became the duke and hates MC), a blond sister(who teaches at the academy), and a brown-haired sister (she's the knight).
Oh, right. I mistook her for a guy lmao. I thought she ripped off her wig too after she got into the carriage.
Um, why did the guys dress up as girls in chapter 9?