In the parallel world of Japan, a labyrinth has appeared and monsters have sprung up. The labyrinths, which at first were nothing more than a new disaster, have been transformed into a stage for getting rich quick thanks to the valuable resources they produce and the ‘cards’ that the monsters drop.... more>>

Monster cards that can summon monsters at will, adventurers who conquer the labyrinth with the power of the cards, dungeon TV that broadcasts their adventures, and a coliseum where monsters fight each other..... These activities have excited people's enthusiasm, and adventurers have become a coveted profession.

Utamaro Kitagawa, a high school student who is a mob character, sees his friend, who was also a mob character, rise to the top of the class caste as soon as he becomes an adventurer, and decides to become an adventurer himself.

Utamaro pulls out a million-yen pack to get a rare card that he can show off to everyone, but the Zashiki-warashi he gets is completely unattractive...?

This work has also been published in "Shosetsu-kaerou" (Let's become a novelist). <<less

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…... more>>

When he knew everything he decided to look for a walkthrough.

This is the story of a protagonist who acquired knowledge of the reality. <<less