Rong Xiaorong

In the 21st century, a young judge time-travels to another world. 
Here, martial arts are evergreen, and myriad schools compete for dominance. 
Confucianism: Immense righteousness, impervious to all laws. 
Legalism: The power of rules, the law follows the word. 
Military strategists: The power of conquest, invincible in battle. 
Mohism: Ingenious mechanics, ordinary humans rivaling gods. 
Yin-Yang school: Numerology and the five elements, seeking divination, pursuing good fortune, and avoiding disaster. 
...
What's this? The Legalists grow stronger by adjudicating cases? 
Li Nuo, who has just vowed to advocate for the people and eliminate the corrupt, discovers that his father is the greatest villain in the court. 
Faced with countless enemies seeking revenge against his father, Li Nuo says he only needs one sentence. 
'My lady, guard me!' 

Chapter 285: The Speaking Tube of Li Mansion