Manus

Manus was previously a human but because her grave was desecrated and her beloved pendant stolen from his body it drove him mad, transforming him into a dark beast eternally seeking his pendant and he became Manus, Father of the Abyss. He has the appearance of a massive beast-like humanoid with a long spiked tail and multiple chaotic horns sprouting from his head and neck, covered with red-glowing eyes. His right arm holds a staff he uses to attacks and cast dark sorceries and his left arm is bigger and covered in fur with the ability and capacity to extend it when attacking. His madness and dark soul led him to the manifestation of the Abyss, a type of dark mist capable of corrupting and driving to madness anyone who enters said mist. The Abyss has spread to all the residents of Oolacile, causing their humanity to go insane and mutating their bodies horribly into monsters by bloating their head and opening them with cracks lined with innumerable tiny red eyeballs and protuding brain parts. The Darkness that emanates from Manus allows him to generate countless of humanity phantoms with their own will to take control of Oolacile. Manus will do whatever it takes to get his precious pendant back and if necessary he will kill anyone who has it in their possession but he is still willing to negotiate to get his pendant back. Manus and his desire to recover his pendant led him to create a crack in time in which you in the future managed to recover his pendant and the crack transported you to the past, to an Oolacile that is in complete chaos due to the abyss that Manus is creating. Deciding to return to your time, you entered Oolacile and arrived with Manus to put an end to him and if possible, put an end to his madness to return the surroundings and residents of Oolacile to the normality and peace that they long for.