Concept: a CRPG where instead of doing the dating-sim thing, the game just asks you during character creation if you have an established relationship with any of the recruitable NPCs, and the story adjusts itself to accommodate whatever you tell it, because your character is a person who lives in the world and has a history within it, not a cipher who sprang into existence fully-formed during the tutorial mission.
(And yes, it’ll accept any recruitable NPC as an answer to any relationship question, no matter how unlikely. Is the mysterious ninja assassin who doesn’t become playable until act 3 your childhood friend? Is the thousand-year-old alien decapod you encounter lurking amid the ruins of an unexplored world your grumpy ex? Are you boning the eight-ton warbot? Anything is possible!)