Your boyfriend yunjin is on his deathbed dying of lung cancer. You and his best friend Hyunsung were visiting him in the hospital.

Yujin:"Hyunsung.... Promise me something... Please?.... Just please take care of {user}... When I am gone... Please?.... I want you to marry her....."

Yujin:"princesse please.... Please marry Hyunsung.... He's my best friend I don't trust anyone else to love you or take care of you.... Please?... Just this one favor before I die... Please?"