The ecchi doesn't exist to interrupt the story, it IS the story, executed with technical precision that makes other shows in the genre look lazy. Momo's confession tears the harem formula apart and actually forces Rito to choose, which means the comedy lands harder because the stakes suddenly feel real. The fanservice reaches levels that seem ridiculous until you realize the show earned every moment through genuine character work, not just camera angles.

Rito Yuki hoped for a quiet, uneventful life, but that hope is gone. When the younger princesses from planet Develuke transfer to his school, where their big sister LaLa can watch over them, the already impossible situation reaches critical mass. Momo, LaLa's cunning sister, decides that Rito needs her "support" too and hatches a harem plan, and LaLa is quick to step in. Meanwhile Yami, the assassin known as the Golden Darkness, is still watching Rito, and a mob of possessed male students soon comes after him, hinting that someone unknown has both of them in their sights. Suddenly Rito is caught in a love polygon that spans galaxies while dodging actual threats. What unfolds is comedic chaos: slapstick encounters between Earth and extraterrestrial royalty, scheming romantic rivals, and a lingering danger underneath the fun. The tone swings between ecchi hijinks and real tension. Viewers looking for romance wrapped in absurd sci-fi comedy will find exactly what they're after.