Ouchi de Amaeru Shakaijin Kanojo no Renai Moyou

"Aren't you ever going to get married?" Teased by his boss over drinks, the protagonist offers a standard reply: "I plan to, once this project settles down." But to him, these aren't just empty words. He has been dating a junior colleague from the same company for two years. They are already living together, enjoying the thrill of a secret office romance unbeknownst to anyone around them. However, a secret relationship brings more than just excitement. It comes with her hidden anxiety and loneliness, leading to moments of jealousy and the occasional lovers' quarrel.