
Final Fantasy XIV: Heavensward is the first expansion pack to Final Fantasy XIV: A Realm Reborn, a massively multiplayer online role-playing game (MMORPG) developed and published by Square Enix for macOS, PlayStation 3, PlayStation 4, and Windows, then later on PlayStation 5 and Xbox Series X/S. It was released on June 23, 2015, nearly two years after the debut of A Realm Reborn.

Heavensward Main Scenario Quests consists of all Main Scenario Quests released in Patch 3.0 as part of the Heavensward expansion. There are a total of 94 quests in this questline. The story continues in the Post-Heavensward Main Scenario Quests.

In the wake of the Warrior of Light’s return from Azys Lla, the nation of Ishgard trembled, the faith of her people shaken to its very core.
Patch 3.1 is the start of the Post-Heavensward content. The story arc from the beginning of 3.1 to the end of 3.3 has been officially referenced as Dragonsong War Main Scenario Quests.

Truth. Peace. Reformation. These were the keys to Ishgard's salvation. So believed Ser Aymeric, acting ruler of the Holy See. However, not all shared in his dream, and in his headlong rush to unite man and dragon once more, those still bound by the fetters of the past rose up to defend their nation against the forces they feared would destroy it.

The conference held at Falcon's Nest was intended to celebrate the reconciliation between man and dragon. But the lingering shade of Nidhogg, clad in the flesh of the Azure Dragoon, marked the occasion by spilling the blood of his own kind─a timely atrocity to remind the children of Ishgard that the conflict was far from over. In those twilight hours Nidhogg cried out for vengeance, and his brethren raised their voices for the final chorus of the Dragonsong War.

After a thousand years of bloodshed and sorrow, the shade of Nidhogg, rage incarnate, fell at last to the Warrior of Light. So it was that the Dragonsong War drew to a close, and the survivors, bloodied but unbowed, could begin to pick up the pieces. A new day dawns in Ishgard, and her champions may rest easy─if only for a moment. For every ending marks a new beginning.

The threat of the Warriors of Darkness is no more. Unexpected reunions salve the ache of bittersweet farewells. And with their ranks further bolstered by the official induction of Alisaie and Krile, once more do the Scions of the Seventh Dawn set their feet upon fate's path and their gaze upon distant horizons.

The Griffin has played his final hand. By harnessing the wrath and despair of his dying countrymen did he give form to a new divinity; by the power of Nidhogg's eyes and his own mortal demise did he give it life. Only through the swift and desperate action of an Archon was the primal sealed away, but even now this incarnation of vengeance strains to escape its prison of light...