"This will be your assigned human." A useless angel, Raffi, is given an important mission from heaven: to train and nurture an outstanding human. However—her assigned human is a devilish high school girl named Lilica!? Skipping classes, talking back to teachers, goofing around with friends… Lilica constantly pulls off every bad student move possible, leaving Raffi completely overwhelmed! "Can I really reform this girl…?" Thus begins the hilarious school life of a clueless angel and a mischievous problem child, packed with silly gags and all-too-relatable "useless human" moments!