お助け封筒システム、発動！<br><br>博士のツイッター：<a href="https://twitter.com/siu_lab" target="_blank" rel="noopener nofollow">https://twitter.com/siu_lab</a><br><br><span style="color: #000000; font-size: 13px;">Part1:</span><span style="color: #006699; font-size: 13px;"><a href="https://www.nicovideo.jp/watch/sm35892187" class="watch">sm35892187</a></span><br>　<br><span style="color: #000000; font-size: 13px;"> 前:</span><a href="https://www.nicovideo.jp/watch/sm35983297" class="watch">sm35983297</a><span style="color: #000000; font-size: 13px;"> | </span><a href="https://www.nicovideo.jp/mylist/66812983" target="_blank" rel="noopener">mylist/66812983</a><span style="color: #000000; font-size: 13px;"> | 次:</span><a href="https://www.nicovideo.jp/watch/sm35984587" class="watch">sm35984587</a><br>　<br>