| In the Warring States Period of ancient China (475–221 BCE), Shin and Hyou are war-orphans in the kingdom of Qin. They dream of one day proving themselves on the battlefield. One day, however, Hyou is taken to the palace by a minister. Winding up on the losing side of a power-struggle, Hyou manages to return to the village, barely alive. Shin then meets a boy who closely resembles Hyou, Ei Sei. For now he is the king of Qin; later he will become the emperor Shi Huangdi. |
| Name | Character | Episodes |
|---|---|---|
| Yoko Hikasa | Kyoukai (voice) | 142 |
| Toshiyuki Morikawa | Li Mu (voice) | 142 |
| Tessyo Genda | Lü Buwei (voice) | 142 |
| Junichi Suwabe | Chang Pin Jun (voice) | 142 |
| Yutaka Nakano | Chang Wen Jun (voice) | 142 |
| Akio Kato | Teng (voice) | 142 |
| Rikiya Koyama | Wang Qi | 38 |