Soul Reaper: The Cursed Gem of Ahriman

When an unassuming boy with a very agnostic world view and his group of D&D playing friends decide to take a stand and flip the script on a school bully their plans fall apart when a real demon is released into the world and the boy must realize that there truly is good and evil in the world and he must learn to embrace these ideas and the power of good to save his friends before thy are stuck in a demonic purgatory forever.