Elmenhilde Karnstein/Relationships

Issei Hyoudou
Upon their first meeting, Issei disliked Elmenhilde for her intentions to take Gasper for his ability and was angered when she discriminated Issei for claiming him to be nothing more than a mere servant with no qualifications, despite being the Red Dragon Emperor. After the events that traumatized her in Volume and reunited in Wordly Desires of Steel short story, her selfish demeanor has lowered and they become friendlier, with Elmenhilde appearing to have developed feelings for him. She eventually became a member of his team for the Azazel Cup as his pawn. When stating her on why she wants to participate the tournament, Issei ask her why she wants to join his team, she remained silent and blushes. During the match against Dulio Gesualdo, upon tasting his blood she finds it delicious and gives her remarkable strength.

Millarca Vordenburg
Millarca is a acquaintance with Elmenhilde as the two are from the Camilia Faction. The two appear to be on good terms as Millarca jumps in joy and hugs her upon meeting. Elmenhilde was also aware that Millarca became a student at Kuoh Academy