A series of BL novels set in the Dom/Sub universe where individuals manifest secondary sexes when they turn nineteen years of age. The novels are loosely connected by the universe rules itself and can be read in any order. Dom – someone who, on a biological level, wants to dominate, punish, and praise. Sub – someone who, on a biological level, wants to be dominated, punished, and praised. Normal – someone who does not have a secondary gender and does not require the dynamics involved in a dom/sub relationship. Switch – someone who, on a biological level, can fulfill the role of either a sub or dom, depending on their partner’s needs or preferences.