Kaoruko is single-handedly raising her only son, Jun. Jun was proud of Kaoruko, who didn't show even the slightest bit of trouble in a single mother family, and respected her mother who was always smiling. However, even Kaoruko has one flaw... That is "weak against electrical appliances". Today as well, Jun fails to record the TV program he was looking forward to, and they have a big fight. A few days later...they were unable to find an opportunity to reconcile, but...