Responses
(Spoiler)
According to other comments I've seen, the bird's soul is gone, and now MC's human body is like an empty shell, even our MC tries to find a way to return the bird's body to its soul, but when does it see he's already dead, she makes a tomb for him, sorry for any mistake in my english, i'm using google translator for this comment
Bro the most upsetting thing about this is that if she goes back to her own body there’s a possibility that it will be because her falcon body died