What do you mean by little sister next door?

Now you can always see different words on the Internet, and the meanings of these words will be very different. Many friends want to know what miss next door means. The little sister next door represents that she is as kind and lovely as the little sister next door, has a good affinity and has no sense of distance from herself. If girls meet the above conditions, they generally have these characteristics, quiet, lovely, naive and pure. If the young lady next door is literally understood, she is actually the same as the children next door. I believe everyone can imagine this feeling, that is, they are very close to each other, and they will not feel strange at all, but they will also feel very warm.