Ran is an illegitimate child. In an accident when his parents were assassinated, he was rescued by his brother An Junmu.
Over the past ten years, An Ran fell in love with An Junmu unknowingly, but he knew a shocking secret, so he never dared to confess his love for fear of being sent to a foreign country by his brother. At the same time, he also understood that An Junmu was only using himself to fight a bloody path for his biological brother An Luyuan in exchange for his peace in life. An Junmu's endless doting on An Luyuan, his mother's sarcasm, and An Ran were able to flutter their thin wings and fly for love. Until, the truth about the assassination ten years ago surfaced, and the order of his brother to kill him appeared in front of him...