Noctis Lucis Caelum

====''[[Final Fantasy XV -The Dawn of the Future-]]''====
After entering the Crystal in Zegnautus Keep, Noctis sleeps in its heart for ten years while receiving various memories from the Crystal. He learns of Ardyn's plight as the rejected healer from 2,000 years ago, of Lunafreya's journey to help him and how acting as his go-between with the Astrals was slowly killing her, explaining Ravus's hostility toward him. He learns how Ignis had protected him when he was unconscious following Leviathan's Trial, and how Regis had learned of his fate as the True King yet striven to give him a happy childhood. Noctis becomes filled with regret on how he didn't know to appreciate the sacrifices everyone had made for him, and though he doesn't want to die, he wants to honor the way everyone had supported him, especially Lunafreya's sacrifice. He is visited by the spirit of his father who encourages him to always push onward, accept the consequences of his actions, and not look back.

Unknown to Noctis, Bahamut is going to discard his servitude, as Ardyn by now has amassed power too great for the Ring of the Lucii to purge. When Noctis awakens he meets Umbra with a notebook from Lunafreya. Noctis learns she is still alive and meets her friend [[Solara Aldercapt Antiquum|Sol]] who takes him to Hammerhead. Noctis learns from Sol that Lunafreya was revived by Bahamut and sent to Insomnia to kill Ardyn. This shocks Noctis, as this was supposed to be his mission, and he is the one with the ring. Lunafreya has been given the power to absorb the darkness, the same power that had corrupted Ardyn, and she is on her way to fully transform into a mindless daemon. Rather than wait for his friends at Hammerhead, Noctis heads to the Citadel alone to save his beloved despite believing the gods won't help him do this.

On his way Noctis encounters the Mystic as a spirit of the [[Old Wall]], now enslaved by Ardyn. Noctis defeats the king of yore and cracks his face plate, realizing the man underneath—the Founder King and Ardyn's brother—looks a lot like him. Released from the thrall of the dark, the Mystic asks Noctis to save Ardyn. When Noctis arrives at the throne room, he finds Ardyn with a daemonic Lunafreya who attacks Noctis. Noctis begs for her to recognize him and blames Ardyn for her transformation, but he explains she had absorbed the Scourge from Ifrit on her own volition, which fully turned her.

Bahamut arrives, saying the king's role has ended as humans' continuing foolish actions mean the world's fate is destruction. Bahamut commands Lunafreya to release her power, and it destroys the throne room. Bahamut raises the Citadel into the air to take the Crystal and the throne out of reach, but Ardyn warps up to it, knowing Noctis will follow to save Lunafreya.

Lunafreya floats above the Citadel, singing to summon [[Teraflare]] to destroy the world. Noctis tries to warp up to the flying building, but an army of smaller Bahamuts stops him. His retinue arrives to aid him along with Sol, Aranea, Biggs and Wedge in their airship, telling everyone to get on. A Bahamut attacks the airship and it crashlands on the Citadel plaza. Sol, Aranea, Biggs and Wedge stay to repair the airship, while Noctis, Gladiolus, Ignis and Prompto continue on.

They run into Ardyn who explains Lunafreya's plan was to take his darkness so Bahamut will use Teraflare, which will be blocked by the other Astrals, exhausting Bahamut and sending him to a long rest. Since Bahamut exists both in the physical realm and in [[the beyond]], he can't be killed, similar to Ardyn's own immortality. Ardyn asks for the Ring of the Lucii, and Noctis realizes his plan is to enter the beyond with the power of the kings of yore and destroy Bahamut there.

Noctis gives Ardyn the "battle of kings" he so desires, defeating him with the Sword of the Father, but to Ardyn's shock refrains from killing him. Noctis explains he would kill Ardyn if it saved the world, but now that Bahamut is going to kill everyone, there is no longer any point, and he is done with needless sacrifices. He asks if Ardyn defeating Bahamut in the beyond would save humanity. Ardyn thinks it might, but doesn't care about being a savior: he only wants vengeance. Even if Noctis cannot forgive Ardyn, he views his nemesis a part of the world that he swore to protect, and recalls how the Mystic had asked him to save him.

Ardyn admits Noctis is worthy of the title of True King, much to his irritation. Noctis summons the past kings from the Ring of the Lucii and beseeches they permit Ardyn to use their power to save the world. The Mystic assents. On the roof of the Citadel Bahamut readies to annihilate humanity, but the other Astrals protect Eos and block his Teraflare. Drained of her darkness, Lunafreya falls and Noctis catches her.

On the otherworldly sylleblossom field where the dying Lunafreya previously passed the Ring of the Lucii onto Noctis, the two meet again as children. She had lived only to fulfill her calling as Oracle, but after meeting Sol, had realized she wants more out of life. They transform into adults, and though Lunafreya thinks this may be the last time they are together, she declares her wish to live with him. As she begins to sink into the abyss Noctis calls out to her to stay with him. This time she can hear him, and feels something touch her hand as everything fades. Noctis awakens with Lunafreya in his arms. Noctis entrusts the still-alive Lunafreya to his retinue and warps off to fight Bahamut while Ardyn sits on the throne and summons the kings of yore, the Mystic dealing the killing blow.

Even if Bahamut consumed the darkness to power his Teraflare, the sun doesn't rise. Either Teraflare was incomplete, or the darkness is simply too vast. Bahamut scolds Noctis for opposing a supreme god as a weak human, but Noctis thinks that even if Bahamut created the Ring of the Lucii, its power derives from the generations of kings. The other Astrals help Noctis defeat Bahamut while Ardyn and the Lucii destroy Bahamut in the beyond even if this will destroy all gods as well as the Crystal. The darkness begins to wane, Noctis strikes Bahamut down, and the Citadel begins to fall from the sky. Titan catches it and the Crystal sucks in the remaining darkness before shattering. As a farewell gift, Gentiana resuscitates Lunafreya as dawn breaks.

Noctis and Lunafreya wed in Altissia, with Regis's spirit wishing them eternal happiness.
{{endspoiler}}