The eternity of the fairy sword is between you and me, reincarnation...
He and she met when the snow was flying, when the waves were rushing, between right and wrong in time and space. This was not accidental, but it was not inevitable either.
In the fairy world, she and he, who is between immortals and demons, go through life after life, alternating between life and death. Whether it is love or hate, it is unclear, but they just use their lives to continue everything about each other.
Love each other but not knowing each other, hate each other but not knowing each other.
Shushan, the Demon Locking Tower, locked his and her past life, but it could not lock him and her in this life.