In episode 2 of Office Girls, Alice Ke (who acts the role of Xing Ren) was bathing in the washroom, when drunken Zi Qi (played by Roy Qiu) entered unknowingly. They sang the song “Rooftop” (屋頂) briefly before Xing Ren noticed another guy was in the bathroom and screamed.

Here’s a few behind the scene photos of the Alice Ke bathing scene, of which it’s possible to see that Alice Ke was actually covered with towel, but the magic of camera angle allowed Alice Ke to appear as if she is bathed nakedly in the drama.