This used to be on Fakku when everything was free although I'm not sure if it's still here.
It starts out in an office setting. The female protagonist realizes that her neck is always hurting because she always turns her head to look at a coworker of hers. She breaks her boss's favorite thing (vase?) but the male coworker takes the blame and apologizes to their boss in her stead. She invites him over to her place later. They may have eaten curry before they did the deed? I believe the pages might have been mixed up or something.
The female protagonist kind of looks like the woman in
this manga, at least the front cover with her bangs and forehead.