Honestly nothing the dev could do would bring her path "down" for you. He could literally write a chapter where she sleeps with some new random dude and yall would still find excuses for her.I loved Kaija's route might of been my favorite but I would be lying if I didn't say I was expecting a bit more character to her or background when we finally learned about her past and grandfather. But it wasn't such a huge deal to me it brought her path down.
You like her for her looks and not her character which is why kaija fans are cooked.