Olirevus: The Last sorcerer

Ether. the most fundamental particle required for everything in daily lives from an electric bulb to launching a missile. All humans depend on it now but it wasn't the case millennia ago. More than a thousand years ago, no one used to know how to use ether which was practically existed in the atmosphere except for a few humans. These humans at that time absorbed ether particles from the atmosphere and used it to protect the human race in the form of spells from other races who treat humans as a virus which grew quickly day by day in a population and are a necessity to remove to maintain the peace in all five continents. These special humans are called Sorcerers who were like gods amongst commoners as they kept peace in the land while fighting against demons, other races for many centuries. Over the years, as they abused their powers, they were banished to an island far away from any civilization. over the time, even normal public forgot about them, treating sorcerers as extinct beings. Olirevus was a sorcerer, living in the banished island in peace all his life, until enemies from the mainland launched an ambush and massacred every sorcerer on the island. He was the lone survivor of the massacre, frozen under the sea for a century, until a researcher finds him and adopts him as he forgets his memories of the past.