The restaurant "Youshoku no Nekoya" is known for the different dishes from the menu, but in this case, it is also known by the irregular persons that visit it on the Satur day.
A magical door appears every seven days in different fantasy worlds allowing dragons, elf, dwarfs, human heroes and a select diverse group of lucky creatures to vist a restaurant from other world and taste all flavors that can not be found in their lands.
Your first impression could be "the story is weak and lacks action." However, the story doesn't need action, fights, war, etc. The story's strength is in the attention to the details of the dishes, the feelings about the dishes, the taste, the flavors, the texture, and the background of the restaurant visitors.
For me, it was nice seeing how the fantastic characters converged on a simple restaurant and they were able to create a small background of each one with some few minor stories or plot lines.
The story has lots of characters, but they are unique and different. We can see some differences between each other. They like different dishes, they look different, and they came from different worlds. The design of each character varies. For example, there is a lion beast, and you could end seeing some drunk dwarf. The only relation that they have is a restaurant door even if they are from the same world. When they enter it, they are prepared for the worst, but they understand that is a place with fantastic food and different clients. It was excellent seeing that if a character goes to other "areas" or another kingdom, it could meet characters from the restaurant. That attention to the details of the writers is the strength of the show, call me silly, but that's how a great story is done.
There isn't a principal character. Perhaps, the human Chef and the two waitresses (demon and dragon) are the most important characters for the story. They received a bit more background than the general characters. They share the same feelings towards the restaurant, the food and they enjoy working there.
The sound mix is good. We aren't going to complain about it. The OP song "One In A Billion," is amazing. You will have that rhythm and lyrics inside your head for some hours.
The art is great. I thought with the constant character changes the art could have a degradation of quality but no. The art and design use a vast color palette, lighting, and differs on the locations. The details of each character even if it appears a couple of minutes was outstanding and focus on the origin of the character. Those details, the combination of few plotlines, and a small story creates a character background. (Hope that the people from TROYCA and Re: Creators learn something from this animation. You can build a character with motion and few plot lines, lesson learned).
Finally, the story could be boring to several spectators seeking action, but this anime isn't for everyone. Also, it isn't bad changing the genre from time to time and relax a bit while you enjoy some different short stories connected with the restaurant. I will recommend this show but with a small advice, do not expect fights, wars, etc. The animation focuses on the dishes and their description, the feeling from each character towards a different flavor and savor.
