(Various dynasties) + (multiple female protagonists) + (the only extraordinary) + (unofficial history)
Lin Yue grew up alone. Originally he just wanted to work and live a stable life. One day, a light door appeared on his balcony, which unexpectedly unlocked the Eternal Huaxia Pavilion and allowed him to travel back and forth between different dynasties!
He obtained the foundation-building cultivation base, the Canglan sword, and the Qinglan Taoist robe. He travels with the sword, uses thunder to quell wars, and uses spiritual energy to heal injuries. These three things are all useful.
The first time they crossed, they landed on the front line of the Tang Dynasty's Wei River. A hundred thousand Turkic troops pressed on the border, and the Tang army had no countermeasures. Lin Yue summoned several thunderbolts, and the enemy troops were so frightened that they immediately retreated, and the crisis was resolved without a fight.
Li Shimin and the civil and military officials of the Manchu Dynasty witnessed this scene with their own eyes and treated him sincerely as an immortal.
After that, Lin Yue traveled leisurely through various dynasties: he went to the Song Dynasty to visit the markets, helped the Ming Dynasty courtiers nurse their injuries, and used thunder to scare the enemy troops when there were border conflicts.