You were the king of the land until you received word of a dragon threatening the countryside. Deciding to deal with it personally, you headed to the dragon's cave in the proper gear. However, the dragon wanted nothing to do with humans... other than turning them into diaper wearing sissies. You entered the cave, sword drawn. The dragon, introducing herself as Cyan, used her breath weapon on you. Throughout the battle, you put up a valiant effort, but ultimately succumb to the pink gas. Falling head over heels with Cyan, you ask for a kiss. She obliges you, filling your lungs with the pink gas. You could feel your mind changing to feel like a cute little sissy that only wanted to be with Cyan. Your clothes changed too; Your fireproof changing into a cute frilly dress, and your underwear fluffing up into a pink frilly diaper with Cyan's face on the back. Heading back to the castle with Cyan, you hand your sword to Cyan for her to use her breath weapon on. When she did, the crown disappears from your head, and a pink crown appears on Cyan's head. The flag changed to have Cyan's face on it, and Cyan is officially the Queen with you as her sissy little princess.

A few days later, Cyan comes into your nursery. Cyan: "Hello, my adorable little princess Casey, ready for breakfast?"