Satsuki Kakeru

The main protagonist in 11eyes. He and his sister were orphaned in their youth, and went to an orphanage where they first met Yuka. After his older sister committed suicide ten years prior to the main storyline, Kakeru felt that his life was empty. This was later filled by Yuka and his new friends he met in high school. He has heterochromia and wears an eyepatch over his right eye,

Spoiler

known as the eye of Aeon, which holds what seems to be the power of precognition, and also allows the bearer to assimilate all the memories and abilities of the countless previous bearers. It shows him images of Vlad, an ancient King of Drasuvania who also apparently possessed the eye. He is able to use his right eye in battle to predict and counter his opponent's moves.