Taida na Kemono to Ori no Naka

Keira, an immortal ice flower who serves the royal palace of the snow-covered country of Resin, is ordered to take care of and placate the prisoners of the neighboring country. Kira is stared at by a captured soldier who looks like a beautiful beast, chained up in chains. He didn't say a word, but Keira felt like she knew what he wanted...

(Source: Tousuisha, translated)