Future Tamae, also referred to as Tama-chan, is the adult version of the character Tamae Honami, who appears in a commercial for Suntory's Premium Malt's beer released in 2025. In this commercial, the story jumps forward approximately twenty years to depict Momoko Sakura, Maruko-chan, and her friends as adults.

In this future setting, Tamae is portrayed as a grown woman who reunites with her childhood best friend, Maruko, in New York City. A significant moment in the commercial involves the two opening a time capsule containing letters they had written to each other as young girls, highlighting the enduring nature of their friendship across the years. The commercial shows them enjoying a drink together in a bar, reflecting a casual and familiar adult reunion.

Information regarding her specific background, personality, motivations, and other relationships in this future incarnation is limited, as the character appears only in a short commercial and not as part of the main anime's narrative. Therefore, details about her development, notable abilities, or a comprehensive description of her adult life cannot be reliably provided. No information is available on her personality or daily life as an adult beyond the brief scenes in this commercial.