There is a restaurant, Pia Carrot. Hiroto starts working there as a part-timer, but a big gas explosion occurs on his first day there. He is badly injured and loses his job. A masked girl suddenly appears in front of him and gives him some advice. By following her advice, he becomes a boss of a newly opened restaurant, a branch restaurant of Pia Carrot. He meets his classmates and old friends there and they start working at the restaurant. His life gradually gets busy...

There is a restaurant, Pia Carrot. Hiroto starts working there as a part-timer, but a big gas explosion occurs on his first day there. He is badly injured and loses his job. A masked girl suddenly appears in front of him and gives him some advice. By following her advice, he becomes a boss of a newly opened restaurant, a branch restaurant of Pia Carrot. He meets his classmates and old friends there and they start working at the restaurant. His life gradually gets busy...