This type of novel was more common and usually involved time-travel and identity switching. The male protagonist was an excellent general in ancient times, but for some reason, he was transmigrated to the modern world and became an ordinary soldier. In this new world, he needed to put in more effort to survive and find a way to return to the past. In this process, he would encounter many difficulties and challenges, but he would also experience many touching stories and experiences. This kind of novel usually involved love, friendship, loyalty, courage, and other topics. The readers could feel different life philosophy and emotional experiences in it.