biologically shes his cousin but yuris parents adopted her so shes his adoptive sister
Yeah I actually noticed that cuz they don't really look alike and i thought she's his step sister but seems otherwise. But he did like her right? Why?
yeah yuri did like her and idk why
Probably because she was like the only person that cared and showed love to Yuri who severely deprived of love.
Yeah makes sense
Did yuri actually like his sister romantically?