Cute High Earth Defense Club HAPPY KISS!

The story unfolds years after the supposed Earth Defense Club saved the world from an alien threat, though the details are fuzzy. Five friends, who share the defunct clubroom at Binan High, find themselves drawn to the local bathhouse. There, they encounter Karurusu, an adorable otter-prince from Honyaraland, who enlists them in his "tributary outreach program." He transforms them into magical knights, tasked with spreading happiness to those in need. However, their mission is complicated by the arrival of Rafunui, a fox-prince with his own ideas for Earth. He empowers a trio of dark knights to oppose the newly formed magical boys. The series follows the conflict between these two groups of magical warriors as they vie for the hearts and minds of the populace. The core theme revolves around the struggle between light and darkness, and the importance of happiness.