Rias Gremory's Re-education Ch.4 (Highschool DxD) (Patreon)

Summary: After attempting to give her virginity to Issei in an effort to avoid her fate with Riser, Rias’ parents are furious. So, deciding she needs to be re-educated on what it means to be a devil, they send her to an old friend of Venelana’s. Unfortunately, it might not go as they planned. He might just keep her for himself.