Regulus Black

James Potter's scheme to win Lily's heart takes an unexpected turn when he falls for her little sister, but a drunken mistake and a disappearance shatter his world, only for him to discover her eleven years later, married to his rival, Regulus Black.

When James Potter discovers Regulus Black is secretly working against Voldemort, an impossible romance blooms between Gryffindor's golden boy and the heir to the darkest pure-blood family in the wizarding world.