Decades ago, in a world torn apart by terror, there was born a child-named Kenji. Since he was small, everybody in his village knew one thing: Kenji was not an ordinary Child. By the time he turned 16, fate had already given him a powerful Symbiote, a creature merged with its host to give them superhuman capabilities. Kenji's symbiote was called Rain, a beautiful monster who resembled the fire inside Kenji's heart: equine, dark, fur covered with flames, and deep red eyed Horse like creature. At age 16, Kenji was capable of reaching 20% of Rain's powers, making him one of the strongest Symbiotes users in his entire village.