Clear: we should get help from the cops!
Me: NO WE DEFINITELY SHOULD NOT?!?
...hookay. So I'm stuck in enemy lair territory wiiiith...a powerful being with the innocence of a child, maybe? Would explain a few things...
He falls from the sky and is unhurt
Has incredibly good hearing
Seems to be a good fighter when motivated
Strong enough to carry grown man home through a city without waking him up
Good (suspiciously good, even) cook
...somehow cleans without making a sound and eats at sonic speeds. >_>
Wears a gas mask constantly (even while sleeping)
Emotes through symbols that other characters can apparently see (Aoba just said a question mark appeared over his head).
Almost childlike understanding of human interactions.
Soooo.... extremely sheltered mutant or... a robot, maybe? He mentioned a grandfather but it could be a creator, too.
I guess time will tell. >_>