Alternative names: Barusak Chronicles ~ Riku The One-winged And Rook The Silver, One-winged Riku ~ I'm From A Clan Of Demon Hunters, But I Found Employment With The Demon King Army ~, 片翼のリク ~退魔師の一族だけど、魔王軍に就職しました~
Following the nuclear warfare, massacre extended towards the entire world. The order of mankind completely collapsed, and survival of the fittest became the ultimate principle.
Once natural desires were unchained, advancing forward no longer became an option. This world could only turn either left or right.
The left leads to the underworld, and the right also leads to the underworld.