music : mamomo [<a href="https://www.nicovideo.jp/user/766148" target="_blank" rel="noopener">user/766148</a>]<br />illustration : 絵宗<br /><br /><br /><br />11/19 reverberation　<a href="https://www.nicovideo.jp/watch/sm24949182" class="watch">sm24949182</a><br /><br /><a href="https://www.nicovideo.jp/mylist/45474220" target="_blank" rel="noopener">mylist/45474220</a><br /><br />