In a moment of crisis, 29-year-old office worker Seiichirou Kondou witnesses a woman being engulfed by the earth before both are swept into a parallel world. Here, he discovers that the inhabitants summoned a saint to combat a deadly outbreak. As recompense for their involvement, the kingdom offers Kondou a life of luxury and grants any wish. Unexpectedly, Kondou requests employment. Securing a position as an accountant in the Royal Palace, he impresses with his meticulous work, drawing the attention of esteemed figures like the stern Knight Captain Aresh Indolark. Amidst the challenges and risks of his new reality, Kondou finds camaraderie with Aresh, whose frosty exterior might conceal a warmer heart.