Fel's manga / #school life(7)

I think that Atoi (MC) is trying to grow. What's in mind was that Atoi was one of the lost kids (or so I guess) by how he said the hometown reminded him of sea. But, Atoi was the only one who didn't shape-shift. I thought of something like he was having a vague or erased memories in place of not having an animal shape-like-curse. Only my guess, I'd love to know how's his past & co