u/Ahdriane

Hello, I'm searching for a short fic where an OC was in a relation with Sirius, Sirius stays as the heir to the House of Black and ask his grandparents for a marriage contract to OC. OC is a woman from a neutral house. House of Black become neutral during the war. OC become a potion mistress and Sirius a Ward Master... I loved that fic, even if it wasn't very long, please help! ^^