With the ideal of benefiting mankind, more than a dozen top scientists in the nanofield established a research institute called "Nanospace" and began to develop medical nanorobots that can treat terminal diseases. After more than ten years of hard work, they are finally close to success. But just when he was about to succeed, Marvin, a scientist in "Nanospace", was eager to save his son, so he injected a semi-finished nanorobot into his young son who had cancer...
