I'm Just a Martial Artist

Alternate history, lighthearted and funny, micro-group portrait. At the age of sixteen, the protagonist used a ring-headed sword to defeat invincible opponents in the world, but he could not beat his own Orion master. The left prime minister at that time was a time traveler who loved fishing, and he and the current emperor studied and climbed the technology tree all day long. Facing the two people who hang themselves out every day, the ministers sigh all day long. I feel that this dynasty is in danger. In addition, there is a Taoist priest who is regarded as the richest man in the south of the Yangtze River, and he is unique in the world with his light skills. There is also a girl who is afraid of chaos in the world. She is the younger sister of the current emperor (quietly)