Read Kingdom Manga
The story of Kingdom is a fictional adaptation of the Chinese history period known as the Warring States period, which ended in 221 BC when Ying Zheng, king of Qin, succeeded in conquering the other states and unifying China. Several of the characters are based on historical figures. Many characters will take the names of people in history, and other times they will have completely different names; oftentimes, this is the result of Japanese kanji borrowing from Chinese characters, and some Chinese names have no equivalent characters in kanji.