Rui opened in February 2024 in Ome, Tokyo, as a single-location rescue cat cafe operating from the owner's home and adjacent dedicated facility. The cafe's founding mission is explicitly stated as "making both cats and people happy," with emphasis on the adoption process that differentiates rescue adoption from conventional pet shop purchases. The owner actively educates visitors about the nuances of bringing a protected cat into one's home—these cats often carry trauma from street life or previous neglect, requiring patience and understanding that pet shop cats do not need.
The physical space was newly constructed specifically for this purpose, creating an exceptionally clean and comfortable environment. The facility is accessed through the residential property with an entrance that requires some navigation to locate. Once inside, approximately 10 cats greet visitors with immediate affection and playfulness, suggesting careful selection for temperament and successful socialization. Amenities include custom acrylic climbing shelves where cats position themselves at various heights, creating photogenic moments where their paws dangle below—a detail that delights visitors and demonstrates thoughtful enrichment design. The owner is notably hands-on, providing detailed introductions to each cat's personality and history.
Pricing is set at ¥1,300 per hour. The owner manufactures handmade merchandise including keychains and cat-related goods, with proceeds directed to veterinary care and cat welfare. This direct connection between sales and cat health creates transparency around resource allocation. Visitors with cat allergies report being accommodated with special considerations. Multiple reviews emphasize accessibility to kittens—a relatively rare opportunity in most cafe settings—and the owner's genuine warmth and communication effort, even with non-Japanese speaking guests.