She is a ray of indifferent soul fire that travels through thousands of time and space, and her mission is to "rescue" those crazy people who are destined to be trapped in the quagmire. They may be indifferent, gentle, or crazy, with different identities, but they all fell hopelessly into despair at the moment they glimpsed her soul.
They greedily grabbed her warmth, trying to privately own this piece of moonlight with the most paranoid possession. She was frightened by the almost suffocating love and fled, but she tasted a secret joy every time she was captured.
"Save them and make them happy." - This is her mission and her shackles. It was not until later that she understood that she was not saving them, but was using her divine soul to tame dangerous beasts one after another, and to fall into eternal perdition with them in the abyss of love.