Welcome to the Slice of Life corner! This story focuses on everyday life, school life and our protagonist's journey to wealth and fame, deep and broad worldbuilding, explaining the unique dynamics of the modern fantasy world from a political and social perspective, a light story about strange everyday life full of adventure and strangeness from the characters in this world. A world full of dungeons? Delinquents and clans rule at school? Social and job class discrimination? Level up in the dungeon? The principal is actually bald? What? War between countries? Mysterious continent? Follow the bizarre life of this story because every development will surprise you! Ren Saran is an orphan who lived in an orphanage all his life, however, when he wanted to enter high school, he decided to move to the center of the dungeon city to become an adventurer, but it turns out he got the vampire job class?! In a world full of dungeons, where job classes like he had were discriminated against and had a bad reputation, Ren fights his way to wealth and popularity through a daily life full of twists and turns, not to mention the misunderstandings that occur!