Heo Gyun (Xiumin), a Joseon-era figure transported 400 years into the future, faces unforeseen challenges while managing his modern-day restaurant. Alongside Bong Eun-Sil (Exy), the pragmatic and determined restaurant manager, they navigate the complexities of blending traditional Korean cuisine with contemporary tastes. As they confront personal and professional obstacles, their evolving partnership is tested, leading to unexpected revelations.