If you're looking for manga similar to Kingdom, you might like these titles.
In ancient China, only one law is followed: “every man for himself.” The political system is corrupt and unfair, and war is raging throughout the country. However, one man, Liu Bei, is different; he is a simple mat-weaver who one day discovers that he is in fact one of the possible heirs to the throne of China, and he longs for a change in his homeland. Alongside two fierce warriors, Guan Yu and Zhang Fei, Liu Bei sets forth on a journey for change, while strengthening the bonds of friendship and brotherhood with his newfound comrades.
The Han Dynasty, which has ruled China for many generations, has become corrupt and oppressive - while the people starve and fall to illness, the Imperial nobles uncaringly live in luxury. One fateful day, Cao Cao, the sixteen-year-old son of a nobleman and leader of a troop of bandits, learns just what it is to suffer when the woman he loves is sold as a concubine to the devious Imperial Attendant, Zhang Rang. Their innocent romance destroyed, Cao Cao turns his efforts to becoming ruler of the world and thus restoring the true justice of Heaven to all people. But the journey to claiming ultimate power is long and fraught with great peril, and at every corner his unscrupulous enemies plot his downfall...
At the height of China's Warring States period, the country was splintered into seven kingdoms: Qin, Zhao, Han, Wei, Yan, Chu and Qi. For years, the separate kingdoms fought ruthlessly for supremacy. This brought decades of death and suffering. The soon-to-be first Emperor of China is on the cusp of conqering the war-torn land, yet three martial arts masters are determined to assassinate him. However one loyal subject stands in their way, ironically in the name of peace for all the land.
The Prince of Lanling, is good-looking enough to attract companions and even their enemies. The super popular hero is always wearing a mask when he has a battle. He'll show us a dramatic twist, a tragedy, and a complicated way of life.
2300 years ago in China there existed a clan called the men of Bokk trained to aid and defend threatened cities with their lives. Kakuri, one of these men, is summoned to the little city of Ryo. Distrusted and even hated, Kakuri eventually gains the trust of Ryo's citizens as Tcho empire's vast army sets their camp on the other side of the river.
Iba decides to live as Genghis Khan, the "King of Wolves," and while ruling the surrounding countries, he trains his own son, Kublai, to become a military commander with the help of his trusted subordinate, Benkei. However, the facts of history are undeniable, and the year of Kang's death (1227) is approaching!! Now, the most powerful and greatest enemy appears in front of them!!
The clouds of war are growing thicker. As the second Middle Eastern war drives the world economy toward another crisis, Japan decides to invade Indonesia in search of a new source of oil. Forces are being deployed, and secret alliances are being made. Meanwhile, Hesung, the leader of the Korean-Japanese teenage mob, gets caught on camera by an NHK reporter as he murders the leader of a Yakuza boss on the streets on Tokyo. Now, with the evidence of his act of violence captured on tape, his life is about to change forever.
From the time I was born into the lowest position in the royal family, and as an omega, my life had already been decided for me...