Yukihime's Companion
A guy who owes his life to Yukihime, a snow spirit who pulled him back from the brink of freezing to death. She's basically attached to him now—literally everywhere he goes gets cold, winter vibes year-round even when it's summer everywhere else. He's spent his life searching for his sister, who got separated from him when they were kids, and that quest drives pretty much everything he does.
Content compiled by AnimeList.moe from publicly available sources.