In a world where daily food is strictly rationed and culinary freedom is nearly nonexistent, a hungry servant girl named Tina works in a lord’s mansion, perpetually starving. One day, a man named Ryūji appears at the mansion, loudly declaring himself a cooking researcher and making no effort to flatter the lord. His bluntness lands him in prison, but while locked up, he notices Tina’s hunger and insists on cooking for her right there. Ryūji is actually the real‑world chef and YouTuber known for his viral, easy‑to‑make recipes and a massive online following. His cooking, however, works differently in this world: each dish not only fills the stomach but also boosts the eater’s magical power and physical abilities.

After tasting Ryūji’s food, Tina discovers she can fight and use magic far beyond her normal limits. Together with a talking refrigerator named Izou, they set off on a journey across a land where most people have forgotten the joy of real cooking. Ryūji’s modern recipes—from oyakodon and chicken tempura to hot sandwiches and ginger pork—become the centerpiece of their travels, attracting allies and stirring conflict. They later meet Shiori, a young mage aiming to pass a sage promotion exam, and agree to help her by hunting a lizard in a dungeon.

The story unfolds through several major arcs. The first arc establishes Ryūji’s arrival, his imprisonment, and his first meal with Tina, which sparks her transformation. In the second arc, while attempting to make beef stew, the party faces a powerful minotaur; Ryūji’s cooking empowers Tina to retrieve the monster’s wine, saving the day. The third arc takes them into a dungeon for Shiori’s exam, where they encounter a mysterious man dressed in a chef’s coat and hat who already defeated the lizard. This stranger reacts violently to Tina’s pendant, forcing a confrontation that unravels the secrets behind Tina’s origins and the true purpose of Ryūji’s isekai journey. The series concludes with Ryūji completing his “buzz recipe journey,” choosing authentic human connection through shared meals over the pursuit of online fame.