She has three lives to love him, but she cannot say "who am I".
At the beginning of the story, she is a psychiatrist and he is a client. She knew the weight of counter-transference, and ended the relationship decisively. However, he died three days later, and she embarked on the road of redeeming him three times.
Across time and space, I just want to save you.
Concept: When ethics kills love, she uses three time travels and three identities to redeem the person imprisoned by lies. Every time he got close was a betrayal of the rules; until the last time, she finally understood how much she loved him.