Tiger Roaring Dragon Yin Details: Five years ago, Zhao Nantian and Pu Qianqian designed to kill Cao Xing's brother Cao Qian, and framed Cao Xing for all the charges. Cao Xing was unjustly imprisoned, and accidentally got a lost and lost ancient book of medicine and martial arts... After returning from prison five years later, Cao Xing resisted in the face of his family's defeat and his mother and sister being bullied. The enemy Zhao Nantian is pressing step by step, the former lover Pu Qianqian is making difficulties everywhere, and the mysterious person wants to seize the ancient books. Cao Xing saw the move