(No System + high-martial-arts world + characters aren't dumbed down + protagonist isn't invincible)
When something or someone makes you furious, when your heart is filled with longing for something, when the world around you seems cold and indifferent, do you ever feel sad?
Have you ever wondered what could be pushing you to change emotionally?
When people are filled with malice, and greed, obsession, and anger are everywhere, what should we do?
(The synopsis doesn't do it justice. Read the story.)