He is a knight who has stepped out of a fairy tale world. He has cared for his little princess since she was a child and taught her how to love and how to become his woman. Teach her how to kiss, go on a date and taste the forbidden fruit in bed with him for the first time. However, because the two old fathers are separated by a wall, the two old fathers are in the same boat. They can only hide their love in front of the two stubborn old men and have secretly dated for 20 years.
Her classmates were envious of her childhood sweetheart and her considerate boyfriend, and her friends teased her for being a stupid person who was looked down upon. But she was happy with it as long as he loved her all the time and only had her in his eyes. But when he knew that she had lied to him, everything changed because he said that he didn't like women who use their scheming and tricks. But not only did she lie to him but she also staged a scam. When he discovers this long-standing "secret", will she still be the woman he wants to protect and love for the rest of his life?