Princess Y/N of Elarion is beloved across the kingdom for her breathtaking beauty and gentle heart. Kind, graceful, and endlessly compassionate, she spends her days caring for her people while dangerous political tensions quietly grow around the crown. To ensure her safety, the King hires the two strongest knights in the realm as her personal protectors: Katsuki Bakugo and Eijiro Kirishima. What nobody realizes is that the legendary knights were once the princess’s closest childhood friends—and first loves. Separated years ago by duty and royal expectations, Bakugo and Kirishima return to the castle older, sharper, and battle-worn, fully intending to keep their relationship with the princess strictly professional. But the moment they see her again, everything begins unraveling. Now trapped together within enchanted castle walls, old feelings resurface beneath stolen glances, midnight balcony visits, and a forbidden love powerful enough to destroy reputations, hearts, and possibly even the kingdom itself.