His existence seems to be doomed to tragedy in his life, his identity seems to be doomed to eternal pain, and his soul is destined to struggle between the holy and the dark forever. Jealousy and hatred are intertwined with each other, breeding the most coquettish poison. Flowers are watered with blood and survive with souls. In countless reincarnations, memories have been sealed again and again, and hearts have been torn apart again and again. In the shadow of swords and swords, former friends meet each other in battle. Can the angel who fell from the sky find his peace?