Yozakura Quartet, Volume 30 (Yozakura Quartet #168-170)

Oushuu Hiizumi, Akina's ancestor turned kinslayer and god of death. Once upon a time, he sincerely fulfilled his duties as the dispatcher of rampaging demons. The question is, just when and why did he stray from the path of righteousness? The tale of a man tormented by his own overwhelming power is told from the perspective of Izanami, the primordial god of Japan. The brighter the light, the darker the shadow...