Exhausted by her husband's obsession with work, Ririka Ririka falls into a forbidden relationship with her son Taro. Their physical compatibility is exceptional, and once they unite, she becomes completely captivated by the pleasure. Day by day, their bond deepens, and despite her guilt, Ririka becomes obsessed with this forbidden ecstasy. Taro feels the same—eagerly awaiting the moment his father leaves, his desire building beyond endurance. Now, this taboo relationship between mother and son unfolds, driven by passion and impulse. A fiery night of intense desire begins...