Sweet, droopy-eyed Riko Hidaka returns in office wear. She gladly agrees when a male coworker asks her to stay late, because the two secretly meet in the empty office every night. During a passionate make-out session and blowjob, another coworker suddenly returns. Riko hides beneath the desk and keeps sucking without being discovered, swallowing every drop when her partner can no longer hold back. The question is whether they can remain hidden long enough to finish the night with a creampie.