"First published in Japan in 2017 by Square Enix Co., Ltd."--Colophon.

"As Loki Familia finishes preparations for their expedition to the 59th Floor, they're not the only group headed back to the Dungeon. But it's like Dejavu when Aiz hears of a white-haired adventurer and a Minotaur, and she bolts away from her Familia to check on Bell"--Publisher marketing.

"Faced with dwindling supplies and many wounded companions, the expedition team takes shelter in Under Resort on the eighteenth floor to rest and recuperate. They've just begun to formulate a plan when an unexpected visitor arrives: none other than the newly minted Level 2 adventurer Bell Cranell and his party. Will his sudden appearance help or hinder Loki Familia's way home?"--Back cover.