How did he bring the Slime out to the "real world", I thought they couldn't ...
https://mangadex.org/chapter/6382/2
Even if he's wearing it, surely... This just sound like a plothole to me.
@TetraSky It might have something to do with the slime's mimicry. Maybe it can copy him down to the DNA, and whatever magic judges who can go and who can't simply couldn't tell the difference.
the other possibility is that only humans (and probably demihumans) from the other world are blocked, while monsters and inanimate objects aren't. you'll notice that touru doesn't have a job on his status so maybe that's the deciding factor, only those with no job can pass.
@shinyray01
Can you really call it a "girl", though? I mean, it IS a slime that can transform into both genders and all despite the feminine name...
And in its base form, it's...genderless..?