Synopsis
Based on the adult visual novel developed by Astronauts: Sirius. A demon from the Astaroth clan invaded the human realm, plunging the world into conflict. Ultimately, the combined efforts of a hero who absorbed the demon's power and sealed it deep beneath the earth brought an end to the war. Two centuries later, whispers spread that the seal has weakened, and that the demon lord and their minions have risen once more. Adventurers eager for glory flock to the underground maze beneath Astaroth's domain, hoping to vanquish the demon and make a name for themselves. What they fail to realize is that Astaroth has prepared a deadly surprise for them...
