Issei Gremory (A Demon's Reality)/Relationships

Serafall Sitri

 * Serafall Sitri is Issei's first love, whom he met during the Devil Civil War. They had developed a really deep relationship, to the point of Issei saying that he will promise to always protect her. In Chapter 3, they had their first date.

Sirzechs Gremory

 * Sirzechs Gremory is Issei's adopted brother. Sirzechs and Issei are shown to have a extremely deep hatred for each other, to the point of Issei using his Soul-Devouring Flames, and Sirzechs using his Power of Destruction to start beating each other when the other did not answer (Chapter 2).

Lucina Lucifuge

 * Issei sees Lucina as an enemy

Gabriel

 * Issei has an unknown relationship with Gabriel, as she is shown to call Issei "Houvdon", which is suspected to be Issei's true name, and seems to know his true origins.