The protagonist Kanzaki Mei is a 3rd year high school student who loves cooking.
Her future dream is to work at her grandfather's small French restaurant.

One day, her grandfather becomes ill and had to be hospitalized, the restaurant was in danger of being closed.
The protagonist's parents weren't' interested in running a restaurant and were planning to sell it and the land, but her grandfather entrusted the restaurant to Mei.

Mei loves her grandfathers cooking and the restaurant, so she started up plans to take over the restaurant during the summer break.
But most of the staff quit and the only ones left were the floor manager and an uninvited chef.
The protagonist's job starts with finding talented staff to help out.

With a talented but stubborn chef, a sommelier who's only good side is his sense of taste, an inflexible manager, a classmate whose only worth is his enthusiasm, and an upperclassman with a trivial attitude, the staff are all problem children.
Will the protagonist be able to successfully reclaim the fame of her grandfather's restaurant over the summer break while dealing with these guys?

[Translated from the official site]