I Asked You to Write a National Fitness Book, and You Wrote the Nine Yin Scriptures

Traveling through the era of spiritual energy recovery, Jiang Cheng became a practical teacher in an ordinary middle school. Before he could figure out the situation, he was called to the office by the school leader and asked to write a fitness manual suitable for all primary and secondary school students? Jiang Cheng wanted to refuse, but the system was activated at the critical moment. Choice 1: Refuse the school leader's request in person, raise your middle finger, and scold him. Reward: a limited edition solid gold wheelchair! Choice 2: Agree to the request of the school leader and obtain a century-old skill, peerless bones, master-level comprehension ability, and the complete version of the Nine Yin Manual! … School leader: "I asked you to compile a physical fitness manual for primary and secondary school students, and you actually compiled a ceiling for national martial arts?" Ministry of Education: "In just over 300 pages, it actually integrates many top martial arts such as internal strength, light strength, healing, acupuncture, fists, palms, legs, claws, fingers, etc. I love this Nine Yin Manual!" Yanjing University: "Teacher Jiang, can you take the time to help our school compile a set of exercises suitable for co-education by men and women?" "No problem, the Jade Girl Heart Sutra is arranged!" This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.