In the third opening of Attack on Titan we see a man and a baby holding hands. Does anyone know who these two people are? I can't remember seeing them in the manga.
Probably this is not totally explicit, but, according to this Website (and many others): http://aminoapps.com/page/shonen-amino/4316391/alerta-spoiler-primera-parte
These are hands from Grisha and Zeke.