I Became The Sex Art Master In My Murim Novel

novice martial arts web novel writer, Kang Yoo, spectacularly fails with his first novel. Frustrated, he decides to indulge his own tastes by starting a new series called “Erotic Blood Unrivaled,” filled with mature women. Unexpectedly, the novel gains immense popularity and attention. Feeling the pressure from the readers’ reactions, Kang Yoo suddenly finds himself transported into the world of his own novel. There, he encounters the women he had always admired in real life and begins to practice the “Long Spring Technique,” which requires achieving harmony between yin and yang to become stronger.