End of Vow

Since ancient times, human and demons have coexisted. They fight with each other for survival, territory, and resources. Human were weak and were suppressed by demons for a long time. There are some special groups of human beings who have great power, and they are called the awakened. Demon, who lost the battle and kicked out from earth vow to not comeback anymore. After awakened person extinct, demon try once more to retake. Note : It's still unstable, there's will many changing in the future.