Takumi has brown hair with blueish-gray eyes.

In the Autumn Election, Takumi is shown to be highly confident, believing that his dish would earn him the highest score. However, his confidence quickly fades when the judges award him only 33 points, leaving him disheartened.

Born into a Japanese Italian family, Isami grew up in Italy alongside his twin brother, Takumi. During their childhood, the two worked at their family restaurant, Trattoria Aldini, under the guidance of their father and uncle. Although Isami excelled in many aspects, Takumi consistently outshone him in the kitchen, earning praise from customers who often requested dishes made specifically by him. Feeling envious, Isami once attempted to replicate one of Takumi’s dishes, but his father scolded him after the dish’s flavor fell flat. Tearfully, Isami apologized, admitting that he only wanted to be as skilled as his brother. Takumi comforted him, telling him that his own cooking only shines when Isami is by his side. From that moment, the twins made a heartfelt promise to grow together, improve their skills, and one day make Trattoria Aldini the best restaurant in Italy.

As time passed, Isami matured into a capable chef and became one of the restaurant’s key members. Recognizing their talent and potential, their uncle suggested that the twins attend Tōtsuki Culinary Academy to refine their abilities further. Though Takumi was initially hesitant, Isami encouraged him to take the opportunity, eager to test their skills at the world’s most prestigious culinary school. The brothers accepted the challenge and were soon admitted to Tōtsuki’s middle school division, where they excelled and advanced to the high school section, ready to take on new rivals and continue pursuing their shared culinary dream.