In the Type-moon Era, What Does It Mean for a Woman to Have a "golden Finger" (a Lucky Charm)?

What would happen if an ordinary person suddenly gained a bewitching charm comparable to Tomie's? Regarding this question—Fu Jiang, a transmigrator who used to be constantly sexually harassed by female tengu and almost locked in a dark room where they would take turns draining him dry, to the point that he had to wear a mask and hood when going out, now says his life is absolutely terrible! Fu Jiang: "I just want to have a serious relationship!"