Without Letting Go
At last the true form of the Tower of Druaga reveals itself. Jil and Neeba, Kaaya and Succubus finally confront each other in the ultimate battle. In the end after a long and climatic battle between Jil and Neeba, the last blow is struck and Jil stands victorious.
Aired 27/03/2009EP 12 - Without Letting Go

Tower of Druaga: The Sword of Uruk
With broken spirits and enigmatic questions that hold no answers lingering, Jil is still trying to figure everything out. Then, a mysterious girl named Kai appears before him and says: “Take me to the top of the tower.”
Kai’s request shrouded in ambiguity, Jil will have another chance to work towards completing his destiny and ascend the Tower. With his hopes and aspirations seemingly slipping out of his hands, Jil must rise to the challenge once again on this never-ending adventure.
(Source: Crunchyroll)