Each Summer of Anu, the armies of the Uruk Kingdom secure their strongholds within the Tower, aiming to eventually conquer the upper floors.
In addition to the Uruk Army preparing for their third campaign against Druaga, innumerable adventurers called "climbers" have been drawn to Meskia by rumors of the Blue Crystal Rod, a legendary treasure believed to be hidden on the top floor of the Tower.
Jil and Fatina, having survived the tower's collapse, attempt to move on with their lives while still coming to terms with Neeba and Kaaya's betrayal.
Voiced by: KENN (Japanese); Todd Haberkorn (English) The protagonist of the series, Jil is a young adventurer who dreams of reaching the top of the Tower of Druaga.
Voiced by: Fumiko Orikasa (Japanese); Trina Nishimura (English) Kaaya is an oracle who specializes in defensive and healing spells.
Voiced by: Risa Hayamizu (Japanese); Brina Palencia (English) Ahmey is a warrior lancer, and the first person Kaaya recruits for her climber party.
Voiced by: Hozumi Goda (Japanese); Chuck Huber (English) A mage from a wealthy family, Melt has fallen into debt and exile, largely due, apparently, to his spendthrift ways; the only sign of his wealth that really remains are his titles and his servant, Coopa.
He claims to be climbing the tower in order to use the Blue Crystal Rod to restore his status, surround himself with women, destroy all the things he finds unpleasant, and various other self-satisfying desires.
Coopa has little direct relation to combat, more often utilizing her domestic abilities to support the party by providing them with nutritional meals made from a combination of rations and monster meat.
Voiced by: Takahiro Sakurai (Japanese); Travis Willingham (English) Jil's half brother, he is a skilled archer and also known as "Neeba the Dragon Slayer".
In season 1, episode 12, it is revealed that Neeba's true goal was to enter the Tower of Fantasy, which could only be opened after defeating the Druaga guardian.
Like Melt, she became a climber largely from a desire for personal profit, intending to use the power of the Blue Crystal Rod to become rich.
Voiced by: Akira Ishida (Japanese); Justin Pate (English) The scout of the group, he possesses street smarts and ninja-like ability, using throwing knives as his preferred weapon.
Voiced by: Hiroki Yasumoto (Japanese); Kent Williams (English) Encased in armor, he is the main attacker of the group, and he wields a battle axe.
He is eventually killed by Neeba, who shoots Pazuzu in the head and heart before he is able to summon the unknown soldiers from his coffins (which have since been revealed to be four robot assassins).
While he initially looks down on Jil and the Climbers, Kelb comes to realize that the Royal Army lacks the ability to defeat Druaga and survive the dangers of the Tower.
Voiced by: Takaya Kuroda (Japanese), Christopher Sabat (English) An obstacle met on the way to the tower, he appears only in Jil's dream, and is quickly defeated.
Voiced by: Takaya Hashi (Japanese); Charlie Campbell (English) The great hero who once defeated Druaga, Gilgamesh now rules as king.
Its malignantly narcissistic beliefs are held in compensation for Gil's own sense of personal vulnerability before the requirements of social duty, the same which have denied him the opportunity to live as he wanted.
Voiced by: Akiko Yajima (Japanese); Leah Clark (English) A spirit of the Tower who resembles Kaaya, Ki was once the first priestess of Ishtar and knew Gilgamesh when he first fought and defeated Druaga.
Voiced by: Jouji Nakata (Japanese); Chris Cason (English) The evil god who terrorizes the people in the Tower, defeating him will reveal the Blue Crystal Rod.
Jil and combined efforts of the remaining Climbers manage to successfully defeat Druaga, but the Blue Crystal Rod turns out to only be a key that allows access to a second Tower.
After Druaga is defeated at the end of Aegis of Uruk, he continues to reappear each time climbers reach the top level of the lower Tower.
The group originally believes that climbing the Tower and obtaining the Blue Crystal Rod would make them more beautiful, but they are not among the climbers who are trapped after the third Summer of Anu ends.
Voiced by: Kana Hanazawa (Japanese); Brittney Karbowski (English) A druid who frequently dines at Kelb's tavern, she is seemingly forced by circumstance to join Jil, Utu, and Fatina during the second ascent of the Tower.
Though she initially appears as their ally, she admits to being a spy for Amina and she has been assigned to recover the four missing knights from Pazuzu's coffins and protect the king's shadow.
Voiced by: Toshiyuki Morikawa (Japanese); Robert McCollum (English) The leader of the Golden Knights, though not incredibly competent and accepts orders without question.
He appears arrogant and ruthless, going as far as destroying buildings of commoners to find Ki and holding Coopa hostage to ensure Melt's cooperation, but actually has a good heart and is somewhat lonely.
In the epilogue, one of the climbers accompanying Fatina and Utu is wearing gold armor and could possibly be Kum as he was a survivor of the Golden Knights.
During her ascension, she eventually confronts Neeba and reveals that he turned against her faction and stole the Arrows of the Void that aided the defeat of Druaga.