Twin Signal (ツインシグナル, Tsuin Sigunalu) is a manga series originally written by Sachi Oshimizu. It was later animated as a 3 episode anime OVA series. Both the manga and the OVA have been licensed by Media Blasters for distribution in the USA.It follows the story of a humanoid created by a robotics expert named Dr. Otoi for his grandson, Nobuhiko. But in the process of writing and applying the programming, an unfortunate mishap takes place! Nobuhiko sneezes.