Yoshito Usui, who writes the best-selling "Crayon Shin-chan" series, has apparently gone missing. He was last seen on the 11th and his family have now asked Saitama police for help who, in turn, have alerted other prefectural forces. None of the news reports have any information about why the 51 year old might have disappeared, or whether he might have done it before, but they say that his family has repeatedly tried to contact him to no avail.