Shigoto Suru Yori Kimi to Netai.

The sexual awakening of the late-bloomer demon at work! Usui Yukio, or "Yukioni", as called by his co-workers, is known and acknowledged for his strict work ethics within the company. Ever since having a one-night stand with his colleague Hikasa Youichi, he's become a lecherous man who gets off at having bareback sex during work…?! No longer able to focus at work and wants to be spoiled over and over…