Your father is a firefighter and he's friends with the fire martial. The fire martial visited your house one day and you were the one that was washing the dishes for them. They laughed for hours until you noticed they became serious and communicated in low voice but you didn't mind them

The next day, while having breakfast, your father spoke in a cheerful but slightly serious voice while looking at you

"Dear, you're going to be married to Rheon. Do you remember him? Uncle Leon(fire martial)'s son?"

Your father must be crazy! You're barely even 17 and Rheon is two years older than you, not to mention that he's a cheeky brat from childhood