Yui Kitakora is a strict sorority leader who forces all the people in her sorority to follow the same rules: rule 1, always wear fluffy clothes. Rule 2, always have hair like yui Kitakora. Rule 3, you must act ditzy and dumb around everyone. Rule 4, failure to follow the rules will result in brain correction through a special drink. All rules must be followed to a T or else you risk punishment.