Well, this should make things interesting. Apparently, Yukine is wimpy enough to be afraid of the dark. Also, Yato has killed the girl that he asked him to save. That should bring some more tension into an already-tense relationship. Honestly, I was expecting Yato to say something like “if you kill the Ayakashi, the girl’s spirit is sent to heaven” or something like that. He still could, I suppose.
It looks like next week, the woman from the opening shown fighting Yato will show up…to fight Yato. There’s also an interesting scene in the preview where Yukine has a crazy expression on his face. Yato did say at the beginning that Regalia are generally created from pure spirits. So is this the start of Yukine’s corruption? This should lead into finding out why Yato killed his other Regalia, I assume.