Koware Skill De Hajimeru Gendai Dungeon Kouryaku

Koware Skill de Hajimeru Gendai Dungeon Kouryaku : Its been several years since dungeons appeared all over the world. Ryosuke Mizuki, a company slave, is present at the scene where his workplace was swallowed by the dungeon and gets the cheat skill “Skill Book”. Taking this o