Watch Null Peta (Sub) - Episode 13 (OVA)
Genius inventor Null tragically loses her older sister Peta in an accident. To get over the grief, Null develops "Peta Robo," a robot with the same characteristics as her late sister. However, the robot is a little different as to what Null expected.
Null Peta (Sub) - Episode 13 (OVA) Comments