By an inexplicable fate, she returned to the unknown past and gained near-eternal life and abilities that others envied.
However, happy?
During hundreds of years of wandering, she has laughed, cried, suffered, and complained.
I have been happy, sad, resentful, and sympathetic.
She thought she could look at life and death with a cold eye and enjoy love aloofly.
But I don't know,
Obsession is insurmountable, the biggest obstacle...