hahahahahah
this is creepy as fuck
half brother into his sis
some one-sided incest shit
Yeah he probably thinks she is adopted
Or he could be like I looooove youuu you are my cute younger sister
You never act cute with me or give me attention!
but she is adopted though?
The duchess called her illegitimate child so she deduced that the Duke was her actual biological father
OUH
That would be so cute
Watch the other brother be like I looooove youuu I just wanted you attention
You were always studying and I tried so hard to make u notice meeee
And turn yandere on her