Enjo Kouhai

In a world where humans and demi-humans live together and both populations are declining, humans deemed "supporters" assist various races once they reach an age of maturity. With matchmaking automated and pairings a mystery, a teacher is surprised when his match is not only an elf princess, but also his own student!

(Source: Fakku!)

Teacher 84% Male Protagonist 79% Nakadashi 79% Primarily Female Cast 79% Female Harem 79% School 76% Elf 75% Group Sex 60% Urban Fantasy 60% Fellatio 50% Dragons 50% Facial 46% Mermaid 40% Lactation 20% Threesome 20% Ahegao 20% Sumata 20% Cunnilingus 20% Handjob 20% Boobjob 20% Deepthroat 20% Large Breasts 20% Public Sex 20% Tanned Skin 20% Armpits 20%