Tsurupeta Shugo Kishi Elfina Ochiru

"Tsurupeta Shugo Kishi Elfina Ochiru" follows Elfina, a flat-chested elf knight sworn to protect her princess and village in a fantasy realm. When humans led by the ruthless Mordo conquer the elves, Elfina surrenders her body as a sex slave to spare her people from slaughter, gradually succumbing to intense pleasures and group encounters.