Card image is old, needs to be updated. =p
Lunar HERO Numii (pronounced New-mee). Designed to counter the rare "Alien" decks. Aliens are not popular today, but they are not completely worthless either, at least according to youtube pundits like Rank10Yugioh. Nonetheless, Numii is a card from several years ago, and who knows, Aliens may get more support at some point. And even if you don't need her effect, 2200 Defense power isn't bad for a level 4.
For those interested, Numii has some lore behind her: She's a member of a civilization that has fought aliens for generations.
Art Credit: I found this image on a create-a-card and took it for myself a long time ago when I had a different way of doing things. At Fanimecon in 2014 I met the artist who went by the name "Katie 100" in the artist's alley where she had this image on display, and she was kind enough to let us use this picture.