Even as a "normie," I'm completely oblivious to it.

(Sweet from beginning to end, no angst or negativity, harem slice-of-life, read with peace of mind!)
I, Su Yuzhe, am clearly a boy, so why do they all call me the eldest daughter of the Su family?
She's even prettier than the school beauty! That's really something.
What should I do if my two younger sisters always fight whenever they meet?
And to those girls, I'm a tough guy, don't come here with your women's clothes!
He's an all-around genius, excelling in sports and academics, yet Su Yuzhe isn't happy today either.
This is the story of a super-affluent person searching for their own everyday life.