Soulmates (Killugon)

In a world where you can start hear your soulmate singing at 12 years old, a normal boy, Gon, and a world famous young popstar, Killua. Both are soulmates and Gon can hear Killua everyday of his life. Gon doesn't know Killua is famous. Gon is determined to find Killua. (IN THIS STORY KILLUA ISNT AN ASSASSIN, AND GON IS NOT A HUNTER. )