A//B//O, Western fantasy, the protagonist has no cp, and the supporting role has bl.
Tesomia is a country where divine grace and black crystal technology coexist. In Tesomia, most people already know their second gender at birth, and only a few Betas will differentiate into Alpha or Omega during adolescence. Alpha and Omega have the divine grace brought by pheromones, while black crystal technology is an opportunity for Beta to advance. In the Era of Holy Advent, all the black crystal mineral veins were discovered, countless new Beta nobles rose up, and the Alpha nobles gradually declined, leaving only the Yasatorian family alone.
Purpose: For a better future