The Ice Guy and the Cool Girl 02 (manga)

Snow spirit descendant Himuro finds himself infatuated with his somewhat offbeat and aloof colleague, Fuyutsuki. As the pair spend more time together, Fuyutsuki begins to notice a change within herself when she catches a glimpse of a side of Himuro that she could have never imagined existed. Meanwhile, Himuro continues to fall harder for Fuyutsuki with each favor she does for him...

Despite how cool, capable, and collected the two coworkers seem on the surface, their romantic inexperience may prove to be one of the greatest obstacles they'll face in coming to grips with their feelings for one another!