Yotaro, a high school senior, has always believed he was an only child. That belief collapses when he meets his real mother and learns that she has nineteen daughters, the youngest a newborn and the oldest eighteen. Before long he is living under one roof with this true family he never knew he had. This single ecchi OVA was released on Blu-ray in stereoscopic 3D, with a regular 2D DVD version sold as Baby Princess 2D Paradise Love.