Kenichi Nishida, a 40-year-old former office worker, quits his job and opens the diner he has always dreamed of owning. Unfortunately, the restaurant is close to financial failure. To save it, he comes up with an unusual plan: use ingredients obtained from dungeons to create new dishes and livestream the process of gathering them. What should be a life-threatening dungeon expedition turns into an effortless display of extraordinary skill. Nishida calmly defeats monsters and explores dangerous dungeons as though it were completely normal. His overwhelming ability and mysterious charm quickly captivate viewers around the world.