Kindhearted Himuro-kun is unlucky: when he focuses deeply, feels pressure, or gets nervous, he unintentionally summons a blizzard for himself and anyone nearby. On his first day at the new workplace, he meets the lovely Fuyutsuki-san, who helps him thaw from his nerve‑induced frost. It turns out she is his new colleague in the bustling department.
In the office, the composed Fuyutsuki-san supplies practical and logical fixes to Himuro-kun's frozen problems—everything from aiding him in gardening without chilling his plants to making sure he doesn"t melt during their sunny business trip amid the city. Each time she does a kind act, the storm of feelings inside him embarrassingly shows up outside his inner turmoil.
Because of the frequent snowfalls, Himuro-kun"s affection for Fuyutsuki-san can"t be concealed yet his heart remains aflame. Though she is inexperienced with romance, he stays resolved to return her kindness and warm her heart however possible.