Thrilled to receive a full scholarship, Tanaka Tetsuro prepares for a new high school experience far from home. Little does he anticipate becoming the sole male student in an all-girls school, where a besotted girl eagerly awaits his arrival. Amidst his close bond with the charming and spirited Asuka, he finds himself entangled in conflicts with the formidable student council, who are in fierce opposition to Asuka and her five companions, a squad of formidable amazon warriors known as the Koi Koi Seven.