Do Your Own Revolution - Chapter 66

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

Haruki arrives in the Naruto world and before he could take a breather, a ninja, holding a sharp blade, rushes towards him.“…”He closed his eyes and prepared for a second transmigration.Unexpectedly, a pair of huge claws stretched out from behind him and twisted the ninja in front of him.“Yuta...”“Don't hurt Yuta...”Haruki opened his eyes and saw a face that was extremely terrifying.Isn't this the Queen of Curses Rika from Jujutsu Kaisen?…[Congratulations to the host for successfully calming down the companion cursed spirit who was in a rage—Rika Orimoto!][The Cursed Spirit Mother Auxiliary System has been successfully activated!][The King of Curses Ryomen Sukuna... Waiting to be activated! ][Host Identity Template——Yuta Okkotsu][Please activate Yuta Okkotsu's main ability!]

A hundred years ago, he was a genius of the Emperor's Domain who made even the God of War wary. He was unparalleled in both alchemy and martial arts. However, his friend betrayed him, leading to his untimely demise.A hundred years later, he rose from being a dandy young master, starting everything anew. From then on, the world witnessed the emergence of an extraordinary genius.“Boss is even more ferocious than a wild beast!”“Boss values friendship above all else. He is forever my best friend!”“Kevin, no matter how long it takes, I'll wait for you. I won't marry anyone else!”“Don't ever provoke that man of calamity. That guy is a beast!”“I am Kevin Anderson, who dares to defy me?!”

The MC entered the body of the An family eldest son, An Ziran, an arrogant 16 years old boy who weighed 78 kg (~171-172 lbs), who only knew how to eat, play and sleep. Seeing his current body, An Ziran decided his first priority was to LOSE WEIGHT!