The indomitable Enka exhibits the power of the semi-hidden in a vicious battle against the Imperial Archives. Meanwhile, Iba Hachiro, Kai's kinsman, crosses blades with former Shinsengumi captain Fujita Goro to protect Ikumatsu. For a third time, the immortal siblings clash over their ideals. To what future will the ensorcelled Sessho-seki lead the valiant?