One of the greatest battles in history was between the 6th Paragon and the Blood Demon Emperor. Unfortunately, only one person witnessed it—a mortal who was away gathering herbs for his healer parents.
The battle occurred in a space bubble, drawing no one's attention. Since it was in a bubble, no sounds were made, so unless you were there when the battle started, you wouldn't know even if it were happening behind your house.
So that great battle was only witnessed by this mortal child, and that was when his destiny changed forever.
This battle occurred because of the Sword of Damnation, a treasure said to belong to the Flame General, one of the five Great Demon Generals of the primordial era.
It was an ordinary sword that evolved through battles and countless bloodshed, and became a terrifying weapon.
The Demon Emperor wanted this sword.