La Mancha

La Mancha (ラ・マーンチャ) is a department store found in School District 7 of Academy City. It is several stories in height and still open after the curfew, apparently having its demographic not the student body of the district.

Etymology
La Mancha is Spanish and can be translated as the The Stain.

Sisters Arc
The store is notable for being the one Mikoto chose to buy her disguise from, which would be used for the remainder of the arc until its destruction during her battle with ITEM.