Synopsis by Cammila Collar
Wataru is crushed when he fails his entrance exams for the high school he had his heart set on. He didn't even apply to any others, so it looks like he's completely out of luck until he finds that he was actually accepted to the Star Gazers Hill West University high school based on a recommendation. The school is located on an island, and when Wataru travels to his new home he is greeted by more than teachers and classmates; he finds that he has no fewer than 12 adopted little sisters, each of whom completely adores him in her own way. Will he ever have time to get his schoolwork done while playing big brother to all these little girls?