My Troublesome Fiancée

I thought I was the protagonist. I'm the CEO's daughter. I'm the one engaged to him... Plus, I'm still a v-... Ah, sorry for rambling. Let me explain...She's cheerful, honest, and friendly. He's successful at his job, considerate, and handsome to boot. (Extremely handsome. Hehe.) Anyway, sometimes, the more challenging a relationship is, the easier...