Book editor Zhan Xi suffers from DID due to childhood trauma, and has three completely different souls living in her body. The unexpected intrusion of top actor Shan Ming broke her cautious life. Faced with the chaos of personality switching, and the prejudice and malice of the outside world, he used gentleness as a shield to accompany her to heal the trauma, fight against the wind and rain, and use his firm love to prove that no matter which side she is, she is worthy of being protected with all her heart.