In each incarnation of the "Great War of Heroes," the hero and the demon king battle for survival and supremacy. While the heroes emerged victorious in the fourth great war and defeated the demon king, this remains an undisclosed fact. Twoeight, the ace of the "Agency," operates in the kingdom's dark side and undertakes all covert operations to support the hero in subjugating the demon lord from the shadows. As an unsung hero, Twoeight dreams of living a peaceful life after the war, but defeating the demon lord is not enough to bring peace to the world.
Amidst this chaos, an awkward boy, and former behind-the-scenes agent fights hard to protect his daily life, opposing anything that threatens it.
