I've got some stuff to take care of, so it might take me a little while to get today's episode of DtB: Ryuusei no Gemini written up, but here's the OP and proper ED which premiered today. I say proper ED because it's the same song but different animation sequence (I have no idea what the Russian says), meaning that last week's city shots were just temporary. They probably just wanted to delay revealing the fact that Suou and Hei will team up. The opening sequence meanwhile was kind of disappointing because it showed mainly Suou (albeit with some big-ass guns) and barely any Hei or Yin. I guess that's probably as good an indication as any for who the series will mainly be focused on. Either way, I liked the Stereopony song.

As for the second episode, the episode itself had plenty of Hei, and it appeared that Yin left him (died?) at some point. The episode ended in a battle where Hei appeared to get defeated, and the epilogue had Misaki with a telescope noticing BK-201 fading out from the sky. It didn't fall though, and obviously Hei isn't finished yet.