It would also be nice if everything, absolutely everything, goes right for the FL/MC. Just the whole world somehow bending over backward to make this CEO love interest as comfortable and cool as possible.
Maybe she transmigrates or develops a body that is sexy, cute, perfect, gorgeous, youthful, glamorous blah blah blah ALL AT ONCE. YEs somehow she is the Domineering Queen, Celestial Fairy, Untouchable Flower on the Cliff, Succumbus Temptress, Cold Ice Princess, Innocent pure virgin ALL AT ONCE.
That no matter what she eats she doesn't get "fat" or lose the perfect vaguely ideal shape. mAGICAL EXERCISE is allowed.
What I mean to say is that she must break so many beauty standards, toxic and everyday run of the mill, that if we tried making this Frankenstein's monster FL in real life, she's just so beautiful she's obviously hideous. Just like Frankenstein's monster, this is a beauty that can only exist in theoretical and bad imagination.
Remember to use every toxic beauty standard and make her WORK IT. She better have Mutton fat jade toilet seat porcelain skin. Hair that is pure and naturally black like the blackhole the shit goes down the internet(unless she's a HOT MIXED BLOOD FOREIGNER remember to use those toxic beauty standards. No such thing as racism or fetishism in bad novels) Eyes are allowed to be a different color FOR NO GOOD REASON other than it's cool and purdy.
Face shapes and beauty standards always chance so go ahead and give her that Korean S-Line, V shape alien face, Beyonce, Shakira, Lucifer's genderbend, anything. It just somehow always works!
Just don't give her short blue hair or something- pffft that's like a side character or another genre or some shit. Makeovers are always allowed bc FL looks good in ANYTHING. They could be eating tacos in a prison jumpsuit with a sumo hair cut and still look hot/adorable