Lottie (タクミ,,Takumi?) is a character that made her first appearance in Happy Home Designer. She is Lyle's niece, and has her own amiibo figurine. Lottie will be at Nook's Homes to help the player out on their first day, having them design her room as practice. Afterwards, she helps the player take on their first client. She also has a huge crush on Digby.
When the player is done with their first client, Lottie allows them to go outside of Nook's Homes to scout clients out for themselves.
Lottie also introduces all the new items the player can use slowly. She is the one that introduces anything, and explains it all. On some days, - mostly days when the player starts playing the game later in the afternoon - Lottie will have small black eyes with no eyelashes, and a grey-ish purple bow instead of a bright blue one. She tells the player not to look at her, for she doesn't have makeup on because she woke up late and didn't have time to put it on, and she says she only wears makeup to impress Digby.