The date is October 15th, 2552.

Halo has been destroyed, and a massive blow dealt to the alien Covenant's onslaught against Humanity. With the few survivors of the UNSC Pillar of Autumn and Gettysburg returned to Earth, the UNSC must now prepare for the inevitable, devastating invasion of humanity's Home World.

However, not even the Office of Naval Intelligence could know that the war will soon take a turn for the unknown as the Covenant Invasion Fleet mean for Earth is redirected to another world, a world known as…

Remnant.

It is the 9th Age of Reclamation.

The Covenant, humiliated by their defeat and the ensuing destruction of the Sacred Halo Ring, begin their search for the homeworld of their enemy, Humanity. in the meantime, the three Hierarchs prepare to hear the defense of the actions of Shipmaster in command of The Fleet of Particular Justice, Thel 'Vadamee.

Even so, a new report has come from the fleet. Covenant scout cruisers have found a world that is not part of the fold of humanity, yet is populated by humans. The Prophets begin making their preparations for an immediate assault on this world.

It is time for the Vytal Festival.

The four Kingdoms of Remnant, ready to celebrate continued peace, have sent their best Huntsmen and Huntresses to the island of Vytal. Protected by the Atlas fleet in the sky and the students of four academies on the ground, not a single Grimm would be able to make it onto the island unscathed.

However, something far more dangerous than the Grimms is coming from beyond. A new foe that bears not an olive branch, but a sword in one hand and a torch in the other.