Unlimited Power - The Arcane Path - Chapter 6162

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

Lin Yi transmigrated into the world of Xianxia and found himself bound with a Supreme Downloading System. For a man who could not be more ordinary, he began his trip to the pinnacle of life.

5 years after the world changed, the final boss appeared.