A boy named Alkain comes to the labyrinth city to become a successful adventurer but loses his life on his first day due to his immaturity. When he woke up again he was in a strange room. There he learns the truth. That the world he had lived in so far was an eroge, and he was the protagonist&h.e.l.lip; When he knew everything he decided to look for a walkthrough. This is the story of a protagonist who acquired knowledge of the reality.