Aiz Wallenstein, the Sword Princess, ventures into the deepest parts of the labyrinthine Dungeon beneath the city of Orario, vanquishing its monstrous denizens with the blazing light of her sword. But when she meets a certain white-haired boy, the encounter will forever change them both.

The peerless Sword Princess can't seem to forget the sight of a young boy running away from her. Watching his receding back brings up memories from her own past and she begins to question her sole ideal of devoting everything to become stronger. For the first time ever, is Aiz is a bit troubled by her heart like any normal young girl

Aiz and her friends make their way to the town nestled deep within the Dungeon only to stumble upon a macabre murder! After determining that culprit must be extremely powerful, the manhunt begins but everyone seems to think that the Loki Familia might be the most likely suspects.

"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.

'Is It Wrong to Try to Pick Up Girls in a Dungeon? On the Side: Sword Oratoria', Volume 12.