Mineko Kazama shares a luxurious Kasukabe home with her son Toru, indicative of their affluence. Her husband's international career necessitates frequent travel, keeping him regularly absent. Mineko lavishes affection on Toru yet demands excellence, rigorously scheduling his life to prioritize academic achievement for future university placement. His packed timetable includes English lessons, piano instruction, swimming classes, and jazz dance training. Beyond her academic focus, Mineko exhibits a playful streak, using her fashionable appearance to attract younger men. She maintains a close, mutually friendly bond with Misae Nohara. Her relationship with Shinnosuke Nohara is particularly warm, viewing him almost as a second son. This familial affection persists despite Shinnosuke's frequent teasing of Toru and the disruptive energy he often introduces into their interactions.