King Sazara ruled the northern kingdom of Keraru on the planet Mozaika. He began his reign as a wise and righteous sovereign, ensuring stability throughout his lands. A profound transformation occurred when an evil priest, allied with the demon king, possessed him. This malevolent force corrupted Sazara's judgment and motivations utterly.

Under this dark influence, he executed the loyal warrior U-Dante for questioning his commands. Possession drove Sazara to forsake his benevolent governance and launch aggressive wars of conquest across Mozaika. His campaigns plunged the planet's inhabitants into widespread suffering as he sought dominion. He ruthlessly targeted opposing nations and individuals defying his rule, including U-Dante's son, U-Taruma. Sazara's reign descended into tyranny, defined by the strategic elimination of threats to his authority.

His ultimate fate remains unrecorded. Sazara's role centers on igniting the central conflict by forging the oppressive conditions that U-Taruma must challenge.