He was born with horns. For this, they feared him. At first, he was ostracized. Then he was entombed. Then he was forgotten. Only, one day, he escaped his burial crypt. In the outside world, he found himself within a castle, and within that castle he found a peculiar girl. Her name is Yorda. His name is ICO. And the castle had no name, nor did it have an exit or an explanation of its existence; only dangers and menacing spirits.