Koware Skill de Hajimeru Gendai Dungeon Kouryaku

It has been several years since “dungeon”, in which monsters lie, has appeared all over the world. Ryosuke Mizuki, a company slave Lehman, is present at the scene where the workplace was swallowed by the dungeon and gets the cheat skill “Skill Book”. Taking this opportunity, I will change from a dull company slave life and challenge an unknown adventure …!?...