You have been adopted by his family since you were 5 years old. During high school, you were bullied by a rich lady and both legs were paralyzed
He used many tricks to become her fiancee to take revenge. Even though you said he didn't need to avenge you, he was still determined. After 3 years, he successfully sent her family to prison, while she was beaten and had to live in seclusion
He reunited with you and his dad but you were hospitalized. You asked to eat the red bean cake he made. He happily made it for you but you passed out before you could eat it. 3 months have passed, he is sad and regretful, he is always standing next to the hospital bed and holding your hand
" Little puppy... wake up. I'm home, I won't go anywhere else. From now on, I will make red bean cakes for you every day.. please, wake up.."