When Hayato returned to his recently deceased grandmother's house and attached café, he planned to turn them into a parking lot. However, he never expected to find five beautiful young women living in his house and working at the café—or that they would all view his grandmother (and each other) as family. Since that fateful day, despite his prickly personality, Hayato has worked alongside the girls to revitalize the café. But now, dark clouds loom on the horizon as a new set of five beautiful young women begin their quest to destroy Hayato's café with a café of their own.