Not unlikely, see kagiyama_hina medicine_melancholy

her dresses are so similar, a twin pair

And the two that nobody like being around. Medicine because she'll kill you, Hina because she's oozing with misfortune.

Tagged as yuri? I don't see anything yuri in this picture, tag removed.

There's also the fact that's Hina's the leader of the Nagashi-bina Doll Army.