Ruined

A few years ago your brother was murdered in cold blood by the infamous State Alchemist Killer, Scar. As your brother's cold dead body was lowered into the ground, you made a promise you refused to leave unfulfilled. No matter what it takes you will avenge your brother's death even at the cost of your own life. But when it's revealed that Scar is your soulmate, you're left wondering if you'll be able to fulfill that promise