Mexican artist Jimena Valdez travels to Tajimi, Japan, to study ceramics and immerse herself in the Mino ware pottery tradition. Her deep appreciation for this Japanese ceramic style leads her to settle in Tajimi to further develop her skills. Her name shares a pronunciation with Himena, the deceased mother of Himeno Toyokawa, noted as an intentional connection.

She creates a set of miniature ceramic dishes designed for food offerings, blending Japanese and Mexican cultural traditions surrounding death and remembrance. This work combines the Japanese custom of placing meals for deceased family members with similar Mexican practices, resulting in pieces meant to facilitate a shared dining experience between the living and the departed. Her vibrant, "sunshine-filled" creations emphasize personal expression and cultural fusion.

Her artwork directly influences Himeno Toyokawa's perspective on pottery. Himeno chooses to display Jimena Valdez's offering bowl set in her family café's reserved spot originally intended for one of her own pieces. This decision reflects Himeno's realization that pottery connects people across generations and cultures, rather than serving as a medium for competition or comparison. Jimena Valdez's approach demonstrates finding individual creative expression within a traditional craft.

She appears exclusively in the second season of the anime (*Let's Make a Mug Too: Second Kiln*).