He is a vengeful evil ghost who crawled back from hell, and he is also a cold-blooded Shura with power over everything.
His body could not help but be trapped in the mansion like a tomb of the living dead, which also contained a tender old dream that spanned ten years.
She was his only concern in the world, even if she was only a third like her, she would be doted on by him.
When he finally grasped the light that warmed him, his life had come to an end.
He wanted to give her a worry-free life.
But she accidentally learned about his condition by taking a pulse.
The two people are obviously in love, but they hide the truth from each other while staying together.
Intention: How to remedy the regret of falling in love but not being able to stay together until old age