https://doujinblog.org/%e5%90%8c%e4%ba%bacg%e9%9b%86-121103-%e7%ac%ac13%e8%89%a6%e9%9a%8a-dq-slaves-%ef%bd%9e%e9%ad%94%e7%8e%8b%e8%bb%8d%e3%81%ab%e6%95%97%e5%8c%97%e3%81%97%e3%81%9f%e5%a5%b3%e5%8b%87%e8%80%85%e3%81%9f/