Azuma Shuri, a young man with dreams of becoming a chef, finds himself transported to another world one fateful day. Taken in by the leader of the Gungrave mercenary corps, he starts off as a mere errand boy but gradually showcases his culinary talents, winning over the hearts of the squad leaders with his delicious dishes tailored to their tastes. Alongside his cooking feats, he also assists in mechanical work and offers a sympathetic ear to their personal troubles and romantic dilemmas. As time passes, Shuri evolves into an invaluable comrade of the mercenary group, unaware of his destined role as the Hero that awaits him.