Once a renowned erotic novelist, Tsukasa finds himself trapped in a prolonged creative slump. Standing by his side is Misa, his gentle yet passionate editor, who firmly believes in his talent and supports him wholeheartedly. However, hidden within her heart is a deep affection that goes far beyond mere friendship. One day, Tsukasa's free-spirited and temperamental older sister, Ryouko, reappears after three years—bringing with her Sayaka, a beautiful girl whose life was once inspired by Tsukasa's novels. As these four women's lives intertwine, a complex and intense emotional storm begins to unfold. Desires, jealousy, and uncertain romantic feelings entangle, giving rise to a shocking, deeply realistic lesbian story that vividly portrays the physical and emotional connections between women.