Age unknown. She has a tall, plump build and lustrous white hair tied up with a hairpin, wearing a crimson kimono with an old coin pattern. She speaks in the "kuruwa-kotoba" style (e.g., "~de gozansu," "atakushi") used by women in the Edo period. She offers snacks perfectly suited to a customer's troubles, but maintains the policy that whether they find happiness or misfortune depends entirely on how the customer eats or uses them.

The proprietor of Zenitendo. She frequently uses teleportation or psychic powers to locate customers or guess the coins they are carrying. Even if one wanders in, they cannot buy snacks without the specific old coin she requires.

Black fur and blue eyes. The pet cat and beloved partner of Beniko, the mistress of Zenitendo. He usually meows with a "Nyaa," but can communicate and converse with Beniko and the golden maneki-neko. He can transform into a fur muffler and wrap around Beniko's neck for travel. It is unclear if he writes it himself or has help, but he keeps a picture diary where he calls Beniko "Master." A cat with lustrous pitch-black fur (the origin of his name), he is extremely intelligent, calm, and composed. He is Beniko's closest confidant and supports her work, such as fetching items she requests or minding the shop during emergencies. He is far smarter than an average cat. He dislikes vaccinations. Before establishing Zenitendo, Beniko was a peddler, but after meeting Sumimaru in the late Showa era, she could no longer travel with him and converted a property she happened to purchase into the candy store Zenitendo.

Golden beckoning cats. They are the cats who craft the snacks and are among Beniko's most precious treasures.

Kogane: The workshop manager of the golden maneki-neko. A reliable leader who organizes the underground workshop and supports snack production. Shiratama: One of the golden maneki-neko. Responsible for workshop schedule management, serving as Kogane's right hand. Mugi: One of the golden maneki-neko. Responsible for making cookies and bread, with a personality that loves fun things.

These golden-shining cats work in the snack workshop beneath Zenitendo. Their personalities vary widely, from meticulous to lazy. When a Zenitendo product brings happiness to a customer (such as when a customer uses a snack wisely), the "Today's Treasure" (the payment for the product) in the small bottle becomes one of these cats. Immediately after birth, they help other cats with their work while looking for a job that suits them; once a job is decided, Beniko gives them a fitting name (usually derived from their job or the snack that triggered their birth). They only speak in "Nya" (though they can communicate with Beniko), but in reality, they can speak normally. They can also change their body size at will, using this ability to maintain a small field in Zenitendo's garden. While the cats themselves are unaware, being born from lucky treasures gives them the power to protect Zenitendo. It was discovered that if they were to all leave Zenitendo at once, the protective spells on the shop would be severely weakened (specifically, people who are not "lucky customers" would be able to reach the shop). They add "-nya" to the end of their sentences. When surprised, they say "Nya-nya!?" There are over 100 of them.