"A face full of hatred"..
I thought the 4 beasts consider/adore Seimei as their master. Even if Suzakku now has become a tengu, it's not Seimei's fault per se. Though it happened because Seimei died and Ashiya asked Suzakku to become a youkai afterwards, I think there's more to it for Suzakku.
I really wonder what actually happened, that Suzakku had that "face full of hatred" look when he saw Haru.
There was this deal in the previous chapter when Seimei asked Suzakku to take care of Ashiya. And not to mention the truth to Seimei's death is not fully revealed yet..
Oof. Looking forward to the next chapter!