Searching for Love: The CEO's Foolish Wife

Is there such a thing as love that lasts a lifetime, loving only one person from beginning to end?

Would you never look down on someone, even if they became an idiot, a madman, or mentally disabled?

No matter what happened in the future, would you stay by their side and never leave?

Even if the seas dried up and the rocks crumbled, would you love each other for the rest of your lives?

She is a mentally disabled woman with the intelligence of an eight-year-old, yet she has found the love everyone dreams of.

He is a handsome CEO worth hundreds of millions, surrounded by countless beautiful women, yet he loves only her.

(For the record, the female lead has always been the same person and has never changed. The male lead has always loved the same person and has never changed.)