In the world of abo, second gender deficiency patients like Bai Lu can be said to be quite rare. Although the current medical situation has reached the pinnacle level of the interstellar world, the lack of second gender is still a major unsolved mystery in the medical field due to the lack of research subjects. As such a rare species, Bai Lu took her younger brother to escape from marriage in her hometown and came to the capital star. In order to support herself and her younger brother, she embarked on the road of dedicating herself to the medical industry. What he never expected was that his beloved Omega brother was planning on how to "sell" him...