Kuroi Tenshi Kuchi Utsushi no Chocolate (Yukirin version) or Kuchi Utsushi no Chocolate (Rena version)? Spoiler Yukirin version: [yt]http://www.youtube.com/watch?v=MhLqQeX_lMU[/yt] Rena version: [yt]http://www.youtube.com/watch?v=VJ73uHM3ahk[/yt]