There is a certain restaurant in the first basement level of a multi-tenant building in one corner of a shopping street near the office district. The historical restaurant, marked by a sign with a picture of a cat, is called "Western Cuisine Nekoya." This restaurant looks completely normal through the week, but on Saturdays, it opens in secret exclusively to some very unique guests. During these hours, doors in various areas of a parallel world open to allow customers of many different races and cultures into the restaurant.
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(Source: Crunchyroll)

Episode 1 - Beef Stew / Breakfast Special

Episode 2 - Minced Meat Cutlet / Fried Shrimp

Episode 3 - Spaghetti with Meat Sauce / Chocolate Parfait

Episode 4 - Omelette Rice / Tofu Steak

Episode 5 - Pork Cutlet Rice Bowl / Pudding a la Mode

Episode 6 - Sandwiches / Steamed Potato With Butter

Episode 7 - Curry Rice / Chicken Curry

Episode 8 - Hamburg Steak / Assorted Cookies

Episode 9 - Fried Seafood / Melon Soda Float

Episode 10 - Crêpes / Natto Spaghetti

Episode 11 - Carpaccio / Curry Bun

Episode 12 - Pork Soup / Croquettes

SILVER LINK.

Sotsu

Avex Pictures

TV Tokyo

flying DOG

Shufunotomo

Dai Nippon Printing

Nikkatsu

Crunchyroll

Restaurant to Another World