Ikki Kurogane walks in on Princess Stella Vermillion changing clothes. A duel will settle the matter, but Stella raises the stakes, obligating the loser to lifelong servitude.

In an effort to help Ayase and her father, Ikki challenges Kuraudo Kurashiki, a swordsman from Donro Academy with the nickname “Sword Eater”.

An innocent kiss shared in secret becomes the catalyst for a scandal, and Ikki is taken by the ethics committee on counts of "indecent" behavior with the Crimson Princess.

The stage is set and stakes run high as Ikki prepares to face the unbeatable Raikiri. In the end, who will be the victor?