Tatsuya’s mother, married to Shingo Uesugi, is the mother of twins Tatsuya and Kazuya. She exudes a cheerful demeanor, frequently smiling and giggling while sharing lighthearted antics with her husband in their children’s presence. Her carefree disposition starkly contrasts her sons’ challenges, as she favors playful levity over enforcing discipline. Together with Shingo, she embraces an easygoing approach to family life, occasionally overlooking responsibilities that impact their sons. Yet her lively presence anchors the household in warmth and humor, cultivating a dynamic rooted in camaraderie rather than rigidity.