800 years ago, a great battle left Sieghart in grave danger; left to die amongst the war-torn waste of Archimedia. Nonetheless, by the grace of the Highlanders living deep in the ruins of Kounat, Sieghart was saved and was taught their great power.
Meanwhile, the demon Ashtaroth had been furiously searching for the Highlanders, and by careless mistake, Sieghart lead an enraged Ashtaroth to the Highlanders, and they were wiped out.
In the centuries that passed, blood from the Highlanders wept from their bodies, through the earth, pooling together…
Every extent of emotion, horror, anger, despair, enmity and hate, delivered by the hands of Ashtaroth, slowly formed into a single life; the embodiment of the Highlander's pain and torment.
After the destruction of the Highlanders, Ashtaroth created a barrier around Kounat that permanently sealed off the area from the outside world. However, once Ashtaroth was defeated by the Grand Chase, the barrier lost its source of energy.
As Ashtaroth fell, Uno arose from the pool of Highlander blood. He possesses no knowledge of what he is or why he was born; he only realizes the hatred, horror and despair that eat away at him and the unquenchable thirst for the very essence of life... blood. He took his first steps outside the ruins and walked as a vagabond.
On the verge of starvation, beaten by the elements and freezing, Uno, collapsed while passing through a village. Reina, a young girl from the village, had taken Uno in and cared for him. She gave him clothing, warmth, and compassion; he decided to stay for the night. Before daybreak... the blood-bound, unquenchable thirst ravaged Uno's very soul and drove him to kill every person in the village. Upon consuming their lifeblood, he snapped out of the frenzy, realized what he'd done... and despaired.
Even with the blood of his friends coursing through him, the thirst only intensified. However, from far away Uno could sense that there was somebody was out there. Somebody who could explain his being, and save him from his monstrous existence and those he cared for. Then, he headed towards Aernas.