Modern Dungeon Capture Starting with Broken Skills (Manga) Vol. 2

A FORMER SALARYMAN IN A DEATH MATCH AGAINST AN OGRE?!
Investment banker Mizuki was relegated to a company branch in the countryside, only to arrive and find it transformed into a dungeon–one connected to another world!
While searching for survivors, he met the talkative fairy Kessie and obtained the mysterious Skillbook ability.
Businessman Horinomiya hears about Mizuki’s skillbook, and as part of his schemes as CEO, he convinces Mizuki to clear a dungeon for him. Horinomiya also sends a female adventurer named Carol, and she is so incredibly powerful that success seems all but guaranteed…until a monster worthy of being the last boss appears and causes chaos within the group! As her companions are defeated one by one, what will Carol do?
With an impudent fairy and plenty of mysterious skills, Mizuki heads into an otherworldly dungeon in search of treasure! This former wage slave’s roller-coaster fantasy adventure enters its second act!
Series Overview: Is this another world? No, it’s modern-day Japan!
Four years have passed since dungeons suddenly appeared all over the world, sparking conflict over the resources hidden within. Then one fateful day, a financial securities salaryman named Mizuki, who was relegated to an office branch in the countryside, arrives at his new workplace to find it transformed into one of those very dungeons.
Entering to search for anyone who might be stuck inside, Mizuki realizes the dungeon is straight out of a video game!
During his search, he comes across a fairy and, using his new mysterious skill book, saves her from being roasted alive by goblins.
The former wage slave’s adventure begins now, as he sets out to clear modern dungeons with his skill book and his partner from another world!