Popular anime Haiyore! Nyaruko-san, scheduled to get a second season, and not-quite-as-popular anime Ore no Kanojo to Osananajimi ga Shuraba Sugiru (OreShura for short) which is scheduled to air in January 2013, have joined forces to upload two special collaboration videos featuring seiyuus from both animes on Nico Nico Douga.

Released via the official Nyaruko Twitter as a message from Nyaruko herself to the offical OreShura Twitter, one video features Nyaruko (CV: Asumi Kana) introducing the OreShura cast during the “Uu-! Nya-!!” section of Taiyou Iwaku Moeyo Chaos, the opening theme of the Nyaruko anime.

http://www.youtube.com/watch?v=kmvh4-F37BM

This is a response to a video uploaded the previous day, in which one of the heroines of OreShura, Natsukawa Masuzu (CV: Tamura Yukari), sings the song Konton yo, mou ichido! - which roughly translates to Chaos, Once Again! – to celebrate Nyaruko’s 2nd season.

http://www.youtube.com/watch?v=rStop2yL_jQ

The videos were originally uploaded here and here on Nico Nico Douga, however it seems that non-Japan users are unable to watch them.

Source: Yahoo!