Koori Zokusei Danshi to Cool na Douryou Joshi

The setting is a workplace where a snowy-white romance blows in like a blizzard.
Himuro is a descendant of yuki-onnas living in modern times and a newbie office worker. When he gets emotionally overwhelmed, he ends up causing blizzards or starts building snowmen and igloos. Whenever his secret romantic feelings for his unique yet kind coworker Fuyutsuki intensify, he sometimes ends up freezing those around him. Then, there's Fuyutsuki. Everyone always sees her as the cool type, but Fuyutsuki is actually also pretty curious about her mysterious coworker, Himuro.
Their relationship continues to gradually evolve daily through work and work events. Eventually, they start to spend time with each other outside of work, but they're both a bit awkward when it comes to love, so they just can't seem to get closer... 

A heartwarming workplace fantasy romcom starring a seemingly cool couple is about to begin!

(Source: Crunchyroll)