Heavenly Swords of the Twin Stars

In the six months since Gen rejected Ei's attempt at bartering peace, Sekiei, Hakurei, and the others have sheltered themselves in the western regions, guided there by Oto. Though Oto is the strategist Ruri's attendant, her true identity is that of U Torahime, the daughter of the U family. Within that same time period, the White Wraith Adai Dada and his armies have encroached further and further into Ei territory, and the nation is in dire straits. With nowhere else to turn, Kou Miu, the younger sister of the emperor who ordered Chou Tairan's death, comes pleading for the Chou and U families' help. The decision they face is a tough one. Should they stay in the western regions where it's safe? Or should they risk their lives to defend the very nation and sovereign that have wronged their family for so long? The curtain rises on Ei's counterattack, and Miu may just be the key to victory.

With the help of his friends, Sekiei successfully manages to defend the city of Butoku from a sustained attack by Orid Dada, a Gen noble who is a powerful general in their army, but Rinkei remains in grave danger as the White Wraith and his troops continue their advance on the capital. Emperor Adai isnt the only threat to Ei, however; having fallen for the machinations of an organization maneuvering in the shadows, Jo Hiyou prepares to make his move as well. But now is the time for a counterattack. After deciding that their next move should be to liberate the Chou armys homeland of Keiyou from Gen control, strategist Ruri comes up with a plan that will fully utilize the Princess Imperial, Kou Miu, and the Heirloom Seal of the Realm. The naive princesss time with the Chou and U armies has revealed the reality her people and country face, and her resolve may turn out to be the only thing that can stop Ei from being totally destroyed.

After what turned into a grueling battle against formidable foes, Sekiei and Hakurei have finally returned to Keiyou and reclaimed it from its invaders-Gen and Seitou. However, while everyone is celebrating a legendary victory, one of the Gen emperor's subjects manages to sneak in and abduct Hakurei. Meanwhile, Ei's capital, Rinkei, is on the verge of collapse. Assured of victory despite the machinations of the scheming rats in both Seitou and the palace, Adai Dada and his army solely focused on a final showdown with Sekiei and the Chou army. And with this final, decisive battle for the Ei Empire looming large on the horizon, Sekiei faces a tough choice: Will he prioritize saving his country or saving his childhood friend and last remaining member of his family? Whatever he decides, the outcome will be the same-for when the dust settles, only one empire shall remain under the heavens.