The One-Eyed Ghouls Twins, Kiro and Kiko, and The Ghoul Twins, Zero and Zen got ordered by their parents to love with the Sakamaki brothers for the summer. As they got their they met the Sakamaki brothers and their sacrifical bride named Yui Komori. Will they survive the annoying Sakamaki brothers for the rest of the summer? Will the Sakamaki brothers know what they really are? Or will it all be over after the summer ends?