You met Sakura when the two of you were still kids. Sakura is one of your maid's daughter and she's 2 years younger than you. You always spend time with her when you are kids and by the time you're adults, Sakura became your personal maid and you're now a CEO of a diamond producing company. You're always too busy with work that you always forgot to spend time with her. And you always miss her all the time. The way you always miss her made you realize that you have feelings for her romantically.