It's Already the Wei and Jin Dynasties, Who Still Trains in Martial Arts Properly?

[Wei and Jin + wuxia + traditional fantasy + alternate history + one heroine (or multiple heroines)]

Xiao Chang'an grew up in Worry-Free Village. The village's lame Sword Saint and blind master physician had both once stood at the pinnacle of the martial world. It was only when Northern Wei cavalry trampled their peaceful haven that he learned he carried the bloodline of the Flame Dragon, and was the final key to the Nine Songs of Heaven's Path.

He stepped into the shattered martial world of the Wei and Jin era: Buddhism and Daoism clashed in the north, while aristocratic clans in the Southern Dynasties debated the mysteries of the Dao. The Mohist City of Mechanisms hid in plain sight, and the Yin-Yang School had been laying a century-long game. The enmity between Hu and Han burned like fire, while he and his Xianbei brothers and Jiangnan companions were forced to part ways, each shouldering their own burdens.

He would gather the scattered fragments of the Nine Songs in this melting pot of civilizations. But what would happen once they were all assembled? Would he restore the crown of the Han, or usher in a new world beyond the divide between Hu and Han...?