Yuuta arrives at Alphonso Gakuen, an exclusive boarding school on a remote Pacific island, expecting a normal educational experience. Instead, he discovers the academy enrolls only the heirs of powerful global families and teaches a curriculum far removed from ordinary subjects: ancient empires, mystical alchemy, and the secret traditions that shape world leaders. The institution trains its students to become "Marginal Princes," individuals destined to hold immense influence across nations and spheres most people never see. As Yuuta navigates dormitory life alongside his privileged peers, he's drawn into their personal struggles and romantic entanglements. Each student carries the weight of impossible expectations, family legacies, and questions about their own destinies. Bonds deepen through late-night conversations and shared vulnerability. Yuuta finds himself caught between his ordinary origins and this rarefied world, uncertain whether he belongs or if his presence will disrupt the delicate social balance these heirs have maintained for years. The island setting becomes both sanctuary and pressure cooker, where romance blossoms against the backdrop of preparing for leadership that few can comprehend.