I recommend " Uchiha Koba's Survival " to you. This novel is about a person who transmigrated to the Naruto world and became the nephew of the Uchiha family's Fuyue. In order to prevent his cousin Uchiha Itachi from killing him a few years later, he began a family's road to survival. Not only did he successfully reverse the fate of the Uchiha clan, but he also changed the fate of many people. The protagonist of this book is a generation older than Kakashi. I hope you will like this book.