There are countless different planes of space in the vast universe. The protagonist travels into an interstellar novel. Before the interstellar era, due to human over-exploitation, the earth has experienced a catastrophe of zombies in history. The global population has plummeted, and women have been abandoned because they have no fighting ability. By the time humans reacted, there were not many women left. Although they tried their best to save them, they were unable to save them. With the efforts of scientists to turn the tide, they finally found a breakthrough in a hermaphrodite fish in the sea. In the year 2222 of the Hope Era, Potion No. 101, The Mermaid Potion, was finally developed. After it is fully taken by everyone, different people will activate different characteristics according to the characteristics of the medicine. There is a special type of people who will grow fish tails after adulthood. They will have the same characteristics as hermaphrodite fish and have children. The same people will awaken different powers. In the current interstellar era, humans have left the earth and are flying freely among the stars, but they are also rejected by different interstellar races. After Xiao Yan was reborn and returned to the hospital where he was 16 years old, he discovered that his world was a book
Concept: The future can be changed by oneself