Yami ni Naku OniCrying Demon in the Darkness ; 闇に哭く鬼―傀儡奇譚・昏い獣 ; Yami ni Naku Oni - Kugutsu Kitan Kurai Kemono

From Storm in Heaven:Kyou is the last of the Puppet Masters, with the power to defeat the Dark Demons that feed on negative emotions. He travels with his two guardian Light Spirits to rid the world of the Dark Demons, knowing that only then will time resume for him. Yet, overshadowing every victory lies the truth behind the slaughter of his clan and the fate of his best friend...