The film opened in Japan on April 19 and sold 506,861 tickets to earn 690,219,500 yen (about US$6.17 million) in its first three days from Friday through Sunday.
Xin does all he can to become a superior commander of an army capable of defeating the Seven Warring States.
Funimation will screen the film in theaters in the United States and Canada this summer.
Xin helps Ying Zheng, the young Qin king who shares his desire to unify China, rise to power within the state.