When you create a website, there won't be many people who create pages that display errors, but it's still an essential page. Ideally, people shouldn't look at the error page, but it can leave a good impression on the brand even in the event of an error. Instead of exposing error messages based on text, we wanted to set up a virtual character named [page] to create a situation about the phrase in an interesting motion to convey an enjoyable experience in an angry situation called error.