Kagura is a samurai girl known as the "Sword Saint" for her mastery of the way of the sword. And Raito is a boy who belongs to a race called "Hito-youkai" that is hated by the people. The two met in their childhood and spent happy times together as best friends. Until the difference in their races separated them. Kagura took up the sword for Raito. To "live together" in order to do so, the bond between the two that transcends years transcends walls, races, and reality!! A one-shot story in the Sunday magazine received such a great response that it has been decided to serialize it! A Japanese-Western mixed fantasy with overwhelming brushwork that will rush out into the world begins!!