She lost her parents when she was young and was entrusted to a magnolia demon who lived for a thousand years.
He is as gentle as the moon, giving her flowers that never fade in all seasons, lights that stay on all night, and gentleness that responds to her requests.
She thought it was love - until she confessed her heart to heart, and he shook his head calmly:
"I only have responsibility for you."
——
It turns out that his companionship is a countdown to fulfilling a contract.