This is the ecchi show that doesn't apologize for what it is or pretend the story matters more than the moment. Keita's resistance crumbles one kiss at a time because the twins are genuinely funny, genuinely charming, and the show knows you're not here for plot. It commits harder than shows ten times its budget, and that shameless energy is exactly why people either worship it or walk away.
Keita has one goal: pass his high school entrance exam. What he doesn't have is peace and quiet, thanks to his older twin stepsisters Ako and Riko, whose relentless flirting and physical affection keep pulling him away from his books. They mean well, but their methods cross lines most families would never allow, and their parents openly cheer them on. What starts as Keita pushing back against their advances gradually shifts into something more complicated. Each kiss draws him closer to both sisters, until he finds himself at the center of a taboo love triangle with two equally persistent girls who both want him. Beneath the ecchi humor lies a peculiar romantic comedy where conventional morality takes a backseat. Keita still needs to pass that entrance exam, but now he's balancing academic pressure against a relationship that keeps growing more tangled. Will he make it through either challenge intact?