>>53293314More or less. It's a girl who's familiar to you in a kind of down to earth and domestic way.
For example, when I described her that way in the doujin thread, I was referring to how natural it felt for her to casually buzz around Ash's house, cooking and doing chores, how well she knows his mom, etc. She even makes the distinction herself in that story, saying she may not look it now but she's a popular performer. That as opposed to the current scene, where she looks like some regular ol' so-and-so from the same neighborhood.
But there's a certain appeal to that homey simplicity. A sort of warm, easy closeness. Hence, your pleasant "girl next door"