Lin Yu, an ordinary teacher, unexpectedly obtained a super teaching system, deeply engaged in AI, nuclear engineering, and cutting-edge medical fields, and led students to conquer cold nuclear fusion technology. When his mother was diagnosed with advanced pancreatic cancer, he integrated the scientific research efforts of all departments in the school to independently develop nano-targeted medical equipment to overcome difficult-to-treat cancers. He has taken root in teaching and educating people in universities, breaking foreign technical barriers, using scientific research to benefit primary care, helping to upgrade rural diagnosis and treatment, using knowledge to give back to his country, and demonstrating the responsibility of young researchers to stick to their original aspirations, tackle difficulties for the country, and protect the people.