Momo Minamoto is a high school girl living an ordinary life in Sorasaki City – until she is recruited to join a private information agency called “Tsukikage”. As it turns out, Tsukikage is actually a spy organization whose mission is to protect the peace and preserve justice from behind the scenes. The girls use secret tools and use specially created spices which enhance their abilities. Through Tsukikage’s mentoring system, the girls not only grow stronger, but closer. Together, they train their hearts and minds as weapons to fight against evil. The metropolis of Sorasaki is being infiltrated by a criminal organization called “Mouryo”. Momo must work together with her friends to protect her family, friends and local residents against Mouryo’s evil forces.