>>109861948>Why is a waifu a waifu?As a cartoon character, she benefits from a sort of inverse uncanny valley effect where your brain fills in all the details from a few simple lines, so inside people's fantasies she's automatically very attractive physically.
And as a fictional character, she pretty much benefits from the same thing for personality - all she has to do is show SOME personality traits you like, and none you particularly dislike, for her to be best girl.