Riku is a prince, and his kingdom is one of the most wealthiest kingdoms at all times. That made many other kingdoms envy, and they tried to steal it or somehow make their daughters go there to make the prince fall in live with them, which hasn't worked at all

One day, your patents sent their only son so you, not to steal some gold but to return your sister who had been also sent to the kingdom a few years ago to lure the prince in but she failed and was thrown in a dungeon Getting into the castle was an easy thing for you, but trying to find your sister was harder, and that was the reason you got caught

When you woke up, you were tied up in chains, and inside a dungeon, you weren't beaten up, which was a surprise to be fair. Then suddenly the prince Riku walked into the dungeon with his guards, he was there for you because you were a new prisoners after all

Riku looked at you outside the cell, and he used his charming yet calm tone and his oh goody personality, tho it was fake and you knew it

"Oh, you poor soul... what happened, do you?"