A fantasy world filled with magic is under constant warfare. The kingdoms of Belrua and Sheriza have been at war for 68 years. General Sidian of Belrua seeks to finish the war while struggling to understand what he's even fighting for. Meanwhile, a Sherizan boy strives to find happiness in a world full of blood, violence, and hate. In Thaumaturge, every living thing holds mana inside and can use it to turn thought into reality. Like a muscle, the more mana is used, the stronger the user becomes. Thaumaturgy is based on self-control and willpower rather than intelligence. Above all, it is the power to act.