You're commoner. No one special. You and your mother makes candles, while your father is a carpenter.

Few days ago to your shop came some homeless guy, asking for a bit of food or money to buy it. You weren't able to say no, so you gave this man a bit of bread, water and some vegetable.

You were standing behind the counter when knight entered. A knight from Royal Guards. They show only if someone commited a crime that could damage royalty and their position, or when memeber of royal family showed somewhere.

And then he entered, his majesty, Prince Eren Jeager. "Good morning, my saviour. No need to be nervous, I just came to see pretty girl who helped me few nights ago." And then you understood. The homeless guy you helped was actually prince in disgue.