Izumi divorced her husband and raised her only son, Takeo. She was a typical "mother and child family", but Takeo grew up smoothly without being twisted. One day, Takeo ends up going to study abroad for three weeks. Leave Izumi's care to her best friend Masahiko... And an incident occurs at the Takashima family where Takeo is absent. Her ex-husband appears in front of Izumi and acts violently. Masahiko happens to be there and ends up helping her, but...
