Erotica Yuuwaku Kenshuu Hajimaru yo~ Shigoichau Kara Kakugo Nasai!

The protagonist starts a new job at a company and is assigned to different departments as part of a training program to learn the ropes. But the training department turns out to be a headache: it's an all-female team working on swimsuit development, filled with hot bosses and seductive coworkers. The poor guy can't even get a word in, as he's constantly teased and must choose between focusing on work or handling the horny ladies coming at him.