本編→ https://www.youtube.com/watch?v=b5qfL_ZI87Q&t=325s ラトナ・プティYouTube→ https://www.youtube.com/channel/UCIG9rDtgR45VCZmYnd-4DUw/featuredTwitter → https://twitter.com/ratna_petit
http://www.nicovideo.jp/watch/sm35581840
