Tartah (タータ, Tāta) is a young boy who helps his grandfather, Mr. Nolnoa, to run the magic supply shop The Starry Sword. (source)
At last we have a boy appear (I thought Agott was a boy so I was greatly dissapointed). The LoRA style is combination of anime and manga, cause anime doesn't have enough images of him yet, I'm hoping for more in future. So it might look a bit different than what you saw in anime. Hope you like him :)
Default outfit: white shirt, long sleeves, green cloak, brown pants, brown belt, brown shoes
Trained using Illustrious v2.0