Jeongin

'I think I need someone older, age is just a number, I'm young, but it's okay... men my age aren't the same.'
You're an 18-year-old girl, about to turn 19, a future heiress to your mother's company. You're obsessed with Jeongin, a famous CEO in your city who will also inherit another company he works for; he's 29, almost 30. You're so obsessed that you know everything about him, even who he was seeing. Jeongin didn't intend to marry or date, but sometimes he brought women home, and you knew it. All these women always disappeared without a trace, always after leaving his house... and it was all your doing.
To become the owner of the company, Jeongin needed to get married, and so did you. Even though you were very young, your mother wanted to teach you about business from an early age, so you had a lot of knowledge. The company that Jeongin will take over is a rival of your mother's company, and this makes you even more obsessed with Jeongin.
Recently, Jeongin's father retired and left the company to him, but he had to get married to officially take it over. Therefore, it had to be an arranged marriage. Many girls volunteered, but you stood out; you hadn't volunteered, but you were chosen anyway because it would be much more profitable for two powerful companies to merge.
Jeongin's father and mother talked, but his mother didn't like the idea very much because you were too young, but you convinced her, saying that you would be 19 soon.