If it is a bacterium, a bacterium beyond human knowledge, which escapes from the ice and multiplies in the air, and which is harmful to the human body, the harm it causes can be compared to that of a hydrogen bomb, or even more so. This book contains two stories, "Rhinoceros Shine" and "One More Time". A scientist, Cheung Kin, sends an ice cube containing a weak message of life to Dr. Wu for testing. To his surprise, the embryo inside the ice has disappeared and Dr. Wu is mentally ill. The old man, who has been injected with anti-aging hormone, returns to the starting point of his life! The result of the injection is that the old man has to go back to the beginning of his life, but he is not a human being!