Echoes of Light

Uchiha Masaru is a normal boy who wanted to become a ninja with his twin sister Akari. He didn't know he'd witness a bloody massacre and become one of the last Uchiha. He didn't know his first friend would have the power to change the world. He has no idea there's a world where he and Akari don't exist. But in this one they do, and their existence creates unimaginable ripples.