yukari meets her son after 15 years. her lonely days without seeing her son have twisted her, and her feelings for him have become abnormal. her son, too, has had his mother's love emphasized in his memories, and these feelings have also changed. on the day of their reunion, the twisted thoughts they both held for 15 years intersect. yukari, though confused, is eventually enveloped in a storm of pleasure, gasping and repeating orgasms... their twisted love ascends to a forbidden relationship.