It has been decades since labyrinths first appeared in the modern world of Japan bringing with them monsters and related catastrophes With this brought many changes the biggest one being a new profession called Adventurer and the monster cards they use to summon their own monsters to fight and conquer labyrinths with
Kitagawa Utamaro nickname Maro is a mob highschooler who becomes an adventurer due to being incited by a former friend of his having sudden social success among their peers simply by becoming an adventurer himself
However things arent quite as easy for Maro Just becoming an adventurer in name only isnt enough for him to gain his spotlight giving him no recourse but to actually tackle labyrinths with the peculiar and not very versatile monster cards that he barely manages to scrape up
