Twin Signal

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. Now, whenever Nobuhiko sneezes, the humanoid (named Signal) transforms from a temperamental adult robot into a chocolate-loving baby version of himself. Despite this little error, the days spent with the Otoi crew are usually fun. Animals, people, and robots all can live in harm...

Twin Signal had one volume published in English by Media Blasters on November 7, 2006. The second volume was scheduled for March 2007, but never released, and the publisher has since become defunct.