Demon Sword: Idle RPG

Oriental Idle RPG, Demon Sword! The Grim Reaper Lord hears a story about the power of a great Demon Sword. His underlings hunt for the Demon Sword, killing everyone who knows about it. The main character fights against them, but ultimately gets killed. But Black Dragon, the Demon Sword, brings him back to life in the process. As the price of resurrection, it demands the blood of demons and humans...