Seven Crowns, One Silent Mirror

A summoned girl arrives at an original magical academy, but its silent mirror cannot place her in any house. An old rule gives each of seven wardens a claim over students without a house, and all seven claim her. Her black glove is a relic that reacts only around them, unlocking a new power with each bond while revealing why the mirror rejected her. Their rivalry, jealousy, and slow-burn attraction deepen as they uncover who summoned her and why.