Kekkon Yubiwa Monogatari, or Tales of Wedding Rings, is a fantasy romance anime series that follows the adventure of Satou, a high school student who is transported to another world. There, he must become the hero known as the Ring King by marrying his childhood friend Hime and collecting five magical wedding rings to save her world. The series blends elements of romance, fantasy, and action into a unique narrative that explores themes of love and destiny.