Tales of Wedding Rings - S01

As the new Ring King, Haruto Satou has married all five Ring Princesses and collected their rings. To fully unlock the rings' power and defeat the Abyss King, Krystal Novaty "Hime" Nokanatika's grandfather decides to summon her magically gifted younger sister, Morion Ravri, to teach Satou and his wives more about magic. Even so, magic practice alone will not be enough. If the princesses want to gain the strength worthy of the Ring King's wife, they must visit three important places: the Elves' Great Library, the Empire's Mythical Armory, and the Spire of Magecraft. On their journey, the group learns that the Abyss King invaded Satou's body during their last battle, putting his life and the entire mission at risk. Despite the danger, Satou is determined to deepen his bonds with his wives and overcome whatever stands in his way to save the world from the Abyss King's evil.