Board Thread:Questions and Answers/@comment-67.1.246.12-20130810173702/@comment-6747658-20140615095125

人間 stands for Ningen, typically used for human in Japanese...you'll hear that being said a lot in any Anime that has supernaturals or demons or whatever in it.

Ultimately it remains mostly the same, liquid (hu)man, it is so far the strongest proof that Eli is indeed none other then Liquid.

I used to be very much opposed to the idea that Eli is Liquid, but seeing more and more proof of it, I do have to accept it...however, I still don't agree with it and think Kojima's bonkers for introducing Liquid here when it was previously states that the man never met Big Boss, yay for retcons