With recent advances in Internet technology, consumers can easily get content uploaded on the network, edit it and create it as new content. However, at the same time, there is a demand for technology to protect the author's rights of the original content. As a technique to fill it, a method of controlling the secondary use of the contents according to the intention of the author by using the BLS signature has been proposed. In this method, in order to prevent secondary usage of content unintended by the author, authors can set signatures controlled on whether editing is permitted for each part of their contents. In this paper, we will implement the contents created by “MikuMikuDance” which can create and edit content, create a demo and display it.