Even though he should hate him, his heart started beating. Saionji Rio, a student at Meihou High School, a school for the sons of prestigious families, stands out among them for his exceptional lineage, talent, and looks. Along with his sworn enemy, Nijou Kazuyoshi, he is revered like a prince, known as "Nikario." Rio has only two years of freedom left, his future already decided. He has a wish he desperately wants to fulfill before graduation. The precious coming-of-age love story spun by two princes begins!