saber (learning with manga! fgo)

リヨ鯖 マンガで分かるセイバー

One of the original servants in Riyo's "Learn Even More with Manga! FGO". He first appeared in Danbooru post #3480508.

Saber is the unborn baby inside the womb (who does all the talking), NOT the mother (who's always silent for some reason). He speaks like an old man and loves to flirt with women. Highly speculated to be Väinämöinen, a figure from Finnish folklore.