Atlas of Heaven and Earth - Chapter 217: Traces

Zheng Tan somehow returns to the year 2003, turning into a black cat. Picked up from a rubbish heap by the Jiao family, he is given the name “Charcoal”, and so begins the life inside Professor Jiao’s family. Zheng Tan remembers that he was once a person, but currently his body is that of a cat. He has no way of speaking the human language, but can understand it, and even retains the thinking and IQ of a young 20 year old youth. Read along as he adapts to this new world, and somehow tumbles from a group brawl to catching a thief.

- Description from Novelupdates

In the middle of a deserted island, a small boy wakes up with two sets of memories: one from his few years of life and the other from a man who lived to adulthood and achieved great things. When he least expected it, a powerful master appeared on the island and took him in as a disciple, revealing a shocking fact: magic exists in that world, and, thanks to it, humanity managed to conquer the galaxy.

“Commander Lu, there are rumors that we are sleeping together, we have a fling!”

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!'