jensseng Yep. Wattpad == Bad Boy goes to high school and turns out not to be that bad at all.
I picked the manga high school setting because I wanted to play merry hell with (all) the tropes. Also bought me an opportunity to screw isekai all over as well. Anyway, if there had been a Japanese-orientated version of Webnovel you'd be swamped by high school romances.
This site runs with the mid twenties multinational coorporate leader with thirty years of business experience (which really ought to have planted the male leads at age 55). Ah, almost forgot, they're Chinese.
So the Wattpad bad boy aged seven years, got forcefed with parents who have a crapton of money and assigned the title of CEO. Still the same bad boy; with a clear tendency to be a lot more abusive towards the female lead compared to the explicitly labelled bad boy from Wattpad.
All in all I'm afraid the OP is in for a long search