Beneath the brilliance of Orario's heroes, another story begins to unfold. A story of two girls standing at the edge of a dying era. One is the Sword Princess, Ais Wallenstein, the silent tempest feared throughout the Dungeon. The other is Asuna Yuuki, the lost High Elf of the fallen Hera Familia - a beautiful yet terrifying swordswoman known as the Berserk Healer, capable of freezing battlefields and healing mortal wounds alike. As shadows begin to spread beneath Orario and ancient powers awaken within the Dungeon, the two Valkyries are drawn into a conflict far greater than monsters and adventurers. A forgotten truth from the Age of Heroes. A conspiracy buried beneath. And a destiny connected to the boy who carries the hopes of the world. While Bell Cranel and Sora Yatagami race toward the coming dawn, Aiz and Asuna walk a far crueler path - one stained by sacrifice, love, jealousy, and the fear of losing the people precious to them.

The age of heroes is over. At least... that's what the world believes. After years of silence, Sora Yatagami returns to Orario- drawn back by something he can't ignore. A new generation is rising. And so are the shadows he left behind. This is where it all begins again.

As Gentle as the Sea. As Peaceful as the Sun. As Swiftly as the Wind. Sora and his sister Himawari were childhood friends with Izuku Midoriya. Sora has always inspired to be Heroes and follow his parents footsteps. Planning to fulfill his dreams, Sora and his best friend Izuku went to U.A. Until one day...

This is the story of what happened long before Sora Yatagami/Karasuki was summoned to Tortus. Ryu the Dragon King is considered a Hero by his people. He spends his days peacefully, managing his kingdom as its King. All that changes when the whirlwind that is Miledi Reisen storms into his life.

We shared everything. Our dream. Our will. Our love. The only thing we can't share is our Fate. If we're all fated to die, then what's the point in living. The reason that we shared everything, so that we can continue to fight for what we believe.

Sora Yatagami was a completely average human, and possessed a strong-willed, kind-hearted, humble and generous personality. However, when one of his classmates betrayed him, he fell into the abyss, where his journey to become the strongest began.

Sora Yatagami was the younger brother of Haruka Amagiri. Ever since her disappearance 5 years ago, Sora vow that he will win the Mock battle to get into the Seven Star Sword Art Festival and investigates the disappearance of his sister, Haruka, a former student at Hagun Academy.

Everyone good story got to have a happy ending. Sora was always helping everyone in need. Helping everyone find their happy ending. Will Sora be able to find his?