The Demon Slayer Corps stands as humanity's only defense against Demons. But what would have happened if it never existed?

He was already the demon king, however, the demon's really didn't follow him wholeheartedly. But now, he has won the official demon against the strongest demon. Now, he is befitted for the demon ...

Demon King's Bow is a ranged weapon that uses Arrows to deal damage. Materials can be fused to arrows to increase the damage dealt as well as provide additional effects, such as explosions or ...