I just realized that a bunch of characters have the Greek version of names of Egyptian deities for some reason (doesn't seem thematically linked)
Seto = Set/Seth
Satis
Osiris
Sebek = Sobek
Apopis = Apep/Apophis
Prolly some others from earlier chapters, can't remember
Imagine having a story where a character who didn't exist in the LN is actually a solid contribution to the cast.
Now stop imagining, Yuuko's already here.