Tamako, a human, arrives at Ramen Akaneko, run solely by cats, for a part-time job interview. Her honesty about being a dog person gets her hired, and she becomes the caretaker of the cats at the restaurant. A story of both cat and human relationships, told through the interactions with both feline staff and customers. Enjoy your extra-large serving of heartwarming and endearing moments at Ramen Akaneko.

How does the world look in your eyes? Papika and Cocona, the heroines of the story, hold the keys to open the door. When the two girls meet, their adventures in a different time and different overlapping dimension called "Pure Illusion" begin. Many things in Pure Illusion will stand in the girls' way on their search for the mysterious crystal called the "Shard of Mimi," an item that is said to grant any wish. However, when the girls find themselves in danger, the Shard of Mimi shines, and they are able to transform.