Ricecake Oh! Zee (previously named Ōji-ya) is one of the stores featured in Tamako Market's Usagiyama Shopping District. It is managed by Gohei Ōji, his wife Michiko, and their son Mochizō. It is located in Usagiyama Shopping District, and is located across from their rival mochi shop Tama-ya. It is known to be more modern with their taste in advertising, in their title and English-titled products.