(Soul Mates)

Slen Forelonne lives in a world where people stop aging when they turn 18. When you meet your soul mate however, you begin to age together. Slen realizes that he can kill his soul mate and live forever. It was painful but at least he got that part over with right? The catch is that over hundreds of years you can find more than one soul mate. After more than two hundred years of killing each of his, he stumbles on a girl named Ara who looks identical to his first love. Ara begins to make him rethink his plan to live forever.