Yui Mitsuya and Masugu Tateishi aren't just coworkers—they really like each other. His helpful yet humble attitude excites Yui, and his cuteness makes Yui grin like an idiot. The problem is, they try to keep their new relationship a secret so as not to make things awkward in the office. However, because they can't stop themselves from touching each other, they risk spilling their little secrets every day at the office.