Is Sakamoto human?


At the end of chapter 4, Sakamoto has some ambiguous dialogue:

![enter image description here](https://i.stack.imgur.com/2eVZc.png)

Is he implying by this that he is not human? Or is he just stating that he
finds other humans interesting?




To me, it's like he is trying to look at human behavior from a 3rd party point
of view.

We won't really know until the mangaka makes it obvious later in the story.

