Kao's feelings for Nagisa grow deeper at the culture festival. When Kiryu-kun sees Kao like that, he declares war on Kuze-kun! As the day of the match approaches, Nagisa also makes a resolution... Will a big change come to this heart-throbbing love triangle? And has a new rival for Kao made an entrance?! Both love and club activities are heating up!! Volume 6, where everybody is serious!