Although this is something the owner of a site dedicated to a particular work should say, but Sushi has now "moved on" to other manga. Sushi still enjoys Wild Half, please do not get the wrong idea, but Sushi just does not surf around for Wild Half sites anymore. So the links are from Sushi's bookmark a few years back, without been checked properly. So if there is a broken link, if you are kind enough to email Sushi, Sushi will be most grateful. Furthermore, if you do not want to see your site linked, email Sushi, and Sushi will get it removed as soon as Sushi receives the email.
One other thing, there is no illustration book or things along that line to Sushi's knowledge. Thus all the images are either scanned from manga or by the fans themselves. So there is not image gallery links.