This article is derived from an idea after watching the movie: Long San is an O, but because the glands were also pulled out when the dragon's tendons were pulled out, he will never be marked and has no period. But miraculously she can still get pregnant? . However, once an ordinary AO is marked, it is a lifelong matter. Both parties will be affected by the other party's spirit. Even if one party dies, the other party will still feel pain. And the marks cannot be completely washed off. But Long San, who doesn't have glands, won't. He is not affected by this kind of thing at all. The only disadvantage is that because there are no glands, the pheromones can easily get out of control and may force A into faqing.
Intention: You have to pay a high price to make up for something you did wrong.