As the name suggests, it is a story about a heroine who is betrayed by her boyfriend and later turns from white to black.
"What good thing are you?"
"I'll remember it for the rest of my life."
"Medically speaking, broken love is just a stress disease. Your sadness and anger are only caused by external stimulation and will be repaired in a short time. But you cannot relieve the emotional pain through extreme behavior, and the physical damage is irreversible."