Despair https://www.youtube.com/channel/UCqj7xY-i30fYVKwHQN8TdnQPART1 : MarkPART2 : AlexPART3 : MarkPART4 : Alex https://www.youtube.com/watch?v=fHMSusQ1RJc
http://www.nicovideo.jp/watch/sm25834512