Hello!
There was this old BL manga where boys are being trained in school so they can be sold/work as sex slaves?? It has a lot of characters
I remember it being pretty old since the artstyle is old
Also they have lessons on classroom how to do BDSM and other kinks like that
Thank youuu it’s exactly this one!!
I’m looking for this manga where MC is summoned and she was the bride/fated person of the demon king otherwise he will turn crazy and destroy the world. They’re like soulmates and she was the one to give him a name or smthing