Toujou Household
Jin Toujou[]
Both Sapphire and Jin were more rivals during the Great War, as both held strength that could rival one another, as such they met several times on the battlefield. It could be assumed that despite being enemies, both of them held respect for one another's strength as they were angered after Raphaeline intervened in their battle. After the three of them were trapped inside of the dimensional space, she later started to develop genuine feelings towards him, as she worked alongside one of her species' longtime enemies to rescue him.
Basara Toujou[]
Her biological child, Sapphire cares deeply about Basara, though she wanted to live a happy life with both Basara and Jin, the only thing that kept her from doing so was the fact that Raphaeline who she also cared for wasn't with them. Upon hearing about the incident caused in the Hero Clan and Basara's banishment, she met him in human form and consoled him about the incident before erasing his memories of her presence.
God Tribe
Raphaeline[]
Both Sapphire and Raphaeline are natural enemies, as they had fought against one another during the Great War after their initial meeting, though this was due to the latter interrupting her fight with Jin. Though both of had them ignored their former dispute in order to rescue Jin who had kicked them out of the dimension where twenty Fafnir had arrived, then she started to care deeply for Raphaeline as someone close to her. This is further shown as she couldn't live a happy life with Jin and Basara without her, then invading the Divine Realm to rescue her.
Demon Tribe
Wilbert[]
Though not much about their interaction have been revealed, Sapphire is shown to care about the position, which her brother would be in if the Demon Realm found out that she had the child of a hero, their mortal enemies within her womb and chose to let Raphaeline carry their child instead.
Sheila[]
Though not much about their interaction has been revealed, Sheila is shown to refer to Sapphire in a familiar tone showing their friendly relationship.