Due to the rapidly increasing death cases in the world, humanity's belief in God has decreased. God is nourished by faith. Therefore, God began to gradually disappear. Those responsible for the deaths are the adept grim reaper and the adept angel. They want to make the world a special place for them. "The assistant", has produced a special grim reaper/angel in his own laboratory to stop this situation. Her name will be "Mira" and she will bring equality to the world.