He transmigrates to the Qin Empire and becomes Ying Yu, the thirteenth son of Qin Shi Huang, Ying Zheng.
From the start, he gains the Hundred-Pace Flying Sword, the Golden Light Mantra, and the Five Thunder Spell.
Just as Jing Ke attempts to assassinate King Qin Ying Zheng, chaos erupts in the palace hall, and no one dares step forward to save the king.
Ying Yu steps in and kills Jing Ke with a single sword strike, saving King Qin Ying Zheng.
From that day on, the thirteenth prince, Ying Yu, becomes famous throughout the Qin Empire.
The Hundred Schools of Thought and the remnants of the Six Kingdoms:
your end has come!
I like it. I haven't seen such a fun time travel novel in a long time.