Police officers Reo Niiboshi and Akutsu Mabu are stationed at a police box in Asakusa, Tokyo. One day, they find a baby girl lying on top of a plate. Naming the girl "Sara", they decide to raise her together. Protecting the town's peace together, what sweet incidents will they encounter!? Along the way, the pair will overcome obstacles as two men being fathers for a baby, and question the origin of Sara's mysterious magical powers...