Heehoon abo au Where Heeseung was an omega, got knot up by a random alpha named Sunghoon. None of them knew they were mates as they left each other too early, even they could not remember one another names. They were only considered as a one-night stand. Until Heeseung got pregnant, not knowing where to find the alpha, therefore he decided to raise his son alone. Unexpectedly his son was chosen by the Moon Goddess. He received a special gift from her, that could cure any kind of disease or injury. News spread quickly as people began to hunt his son. Therefore, he needed to take his son further away from hungry beasts. (Also published at Archive of Our Own)