1. Story about a master slave trader(kinda felt like a village chief tho. Extremely kind and caring towards his slaves, who turned into something like a fmaily to him) and an trainer(the sex trainer type) who was an ex-prince
2. Modern world where an alien who is obsessed with bl forces two childhood friend to be "intimate" with each other for research. Of course, they develop feelings soon after.
Sahara no Kuro Washi