Kagami Yoshimizu's LUCKY STAR follows young Konata Izumi and her high school friends Tsukasa Hiiragi, Miyuki Takara, and Kagami Hiiragi. Konata struggles to concentrate on her school work due to extracurricular activities, and frequently finds herself scorned by the bookish Kagami. Meanwhile, Kagami's twin sister, Tsukasa, couldn't be more different from her sibling and drifts aimlessly through life. In this sixth installment, the students take a class trip that turns out to be about more than just education. When they’re back at the hotel, everyone learns of Kagami’s secret love.