I KNEW IT! WAHAHAHAHHAA I SAW THIS GIRL X GIRL COUPLE A MILE AWAY THIS IS GOING TO BE CUTE

Are they also half siblings or am I reading it wrong

No. First, I think one is adopted because she would have been born before her parents were even a couple. Second, the divorced parents weren't in love and never had kids together.

Nope! So-yi’s papa and princess’ mama were in a toxic marriage but divorced with no kids! Basically so-yi likes the daughter of her papa’s ex. Hope this helps!