Aoi Yujo, a girl who transforms into the beautiful warrior Cheer Sapphire and fights against the monsters that nest in the school, on the condition that she joins the cheerleading club. - Aoi, who is both a warrior and a girl in love, creates a cheerleading club to support Makoto Jindo from the soccer team, and scouts Miku Aino, a former member of the softball team, and Hiromi Tomozawa, a former member of the swimming club. - However, when the monster Krun learns of this, he changes Makoto into the monster Kellar, Miku into the monster Jarrah, and Hiroumi into the monster Seiren. - Chia Sapphire, who learned that the true identity of the monsters were Makoto and others, was unable to fight satisfactorily and was beaten and defeated by the three monsters, and was taken prisoner. - He is violently hurt by Keller and his friends, and his body is played with. - Makoto and his friends regain their senses due to Chia Sapphire's desperate pleas, but... Will Chia Sapphire be able to save the three and defeat the demon Krun? - ? - [BAD END]