At the brink of death, Yoriichi Tsugikuni awakens the power of "Daybreak," allowing the Breath of the Sun to briefly borrow the phenomenon of the blazing sun and enter a realm beyond anything he has known.
This power also awakens the long-buried fate binding him to Michikatsu Tsugikuni once more.
One pursues the sun, while the other descends into the moon's shadow; one protects the day, while the other sinks into the night.
When the brothers reunite beneath a blood-red sky, their blades are no longer raised solely to slay demons.
Amid the clash of the sun and moon, they must sever a century of hatred.
