Sharon works alongside Yor at Berlint City Hall and is one of her three co-workers there. She's got a kid and was present at Eden Academy's admissions interview.
What stands out about Sharon is how neutral she stays in the office drama—she doesn't join in when the others tease Yor, but she doesn't really stick up for her either. The one time she does speak up is when Millie crosses a line suggesting Yor would have better luck finding a boyfriend if she weren't so scatterbrained; Sharon tells her to knock it off. Beyond that, she mostly keeps to herself, usually with a cigarette in hand during work. She's left-handed and clearly has enough going on at home that she's hired someone to handle the cooking.
Content compiled by AnimeList.moe from publicly available sources.