On Earth in the near future, humanity faced imminent destruction from mysterious giant creatures known as "Huge." The entire world unites against the Huge, and successfully develops weaponry known as "CHARM" (Counter Huge Arms) by combining science and magic. CHARM exhibits high rates of synchronization with teenaged girls, and the girls who use CHARM are viewed as heroes called "Lilies." Throughout the world, "Garden" military academies are established to train Lilies to face the Huge and to serve as bases to protect and guide people.

Riri Hitotsuyanagi managed to pass the exam to enter the prestigious Garden known as Yurigaoka Girls' School. She entered in an attempt to find Yuyu Shirai, a girl who rescued her in her past. This is a story about Riri and other girls who aim to become Lilies at one such Garden.

Hatogaya Kohane falls in love with cheerleading at the end of middle school, and begins a cheerleading club in high school with Arima Hizume and Saruwatari Uki. The positive, hard-working girls will be sure to cheer you up!

Depuis qu'elle est au collège, Kohane Hatogaya se passionne pour les cheerleaders. Lorsqu'elle entre au lycée, elle monte un club de pom-pom girls aux côtés de ses amies Hizume Arima et Uki Saruwatari. Ces jeunes filles vont s'entraîner dur pour apporter moral, soutien et faire le plein d'ondes positives !