Demonion: Gaiden

Based on the adult game by Astronauts: Sirius.

A demon of the Astaroth invaded the human kingdom, dragging the world into war. However, he is ultimately repressed by the unity of the hero who takes his power and seals him deep underground. Two hundred years later, there are rumors that the seal is broken because the latest in the earth's crust and his demons have been revived. Many confident adventurers descend on Astaroth's underground labyrinth with the intention of defeating him and becoming famous. Little did they know that Astaroth had made a trap for them ...

(Source: Nekopoi and Has Been Translated)

Episode List (2)

Demons 79% Large Breasts 79% Group Sex 79% Defloration 79% Rape 79% Bondage 79% Female Harem 79% Ninja 60% Threesome 60% Elf 60% Fellatio 60% Incest 60% Assassins 60% Maids 60% Flat Chest 40% Anal Sex 40% Boobjob 40% Public Sex 40% Yuri 40% LGBTQ+ Themes 40% Tentacles 40% Facial 20% Masturbation 20% Sex Toys 20% Double Penetration 20% School 20%