Introduction: Matthew Johnson, born with curiosity of a cat, bored with things fast, and lazy. Not a genius but above average, he has fine grades and living his life normally. Bored with it, he reads fantasy novels and played games.However, his daily life changed when the whole people in the classrom got summoned into another world.With the summoner not having enough mana, some of the summoned lost their physical body, and reincarnated instead.This is a story of Matt, given the chance to select the race he wanted to reincarnate into, he become a dungeon to fill his curiosity.Note: This story is just something that I write in my free time so, no schedule. And, I used this story to learn more how to write....