Starfire Breath! Traveling through Demon Slayer, the invincible system awakens on the night of the tragic death of his family. He forbeared for twelve years and created a unique breathing method, specifically designed to kill the twelve ghost moons. Save Kanae, change the tragedy of the original work, and use the knife to Wu Mei: "I have decided on your life." In this life, I will burn out the night with a mortal body and protect the last spark in the world.
