"The way you're sucking it... is kinda lewd." Late at night on the emergency stars at work, only the sounds of heavy breathing resounds... The kiss I exchange with my unpredictable coworker makes my reasoning melt away... Satsuki Mamami who works as a web director is taking on a new project, so she decides to ask her coworker, the systems engineer Ryosei Shiiki, for help. Ryosei is famous for his aversion to overtime work. However, after two consecutive evenings of overtime, he finally proposes an exchange... "Doing this for each other is kinda... sexy. I like it." Even though we're at work... I'm feeling so good that I can barely stand... My dripping love juices are entangling around Ryosei's fingers and my legs... Read the long-awaited manga adaptation of "Overtime Late at Night", a hit work by the situation CD record label "Queen Lily", producer of the finest audio delights!