The protagonist "Jin Yao" is six years old and witnesses his parents being torn apart by a tide of beasts led by "Nine Infants". The mother used the blood as a guide to light the "soul-keeping lamp" and locked Jinyao's soul in the human world for a moment, allowing him to see a "Broken Star Sword Embryo" hanging in Jiuying's body - that was his father's last relic. After the soul-guarding lantern was extinguished, Jin Yao was adopted as an "orphan" by the border troops, but the wick burned spontaneously every night, leaving "candle-shaped burn marks" on his shoulder blades. The military doctor concluded that the day when the oil in the lamp burned out was the day when his soul would fly away.
