WIXOSS: TWIN MEMORIES

A student at a school for young ladies, Risa Tamaki has a strange dream day after day. In the world from her dream, girls called "Players" holding an unusual energy known as Ena are gathered in a place named "The Laboratory." There, they keep engaging in battles accompanied by LRIG spirit-like beings in the form of young girls even if they have no idea why they need to fight. Just when Risa starts suspecting that this curious dream may be caused by the pendant her late grandmother bequeathed her, she loses it. Shortly after, her new classmate, transfer student Asuka Suzu, appears with none other than her grandmother's pendant. Asuka tells Risa that she will not give back the pendant without receiving something in return. Asuka's condition is that Risa partners with her in the new pair competition of the card game WIXOSS. (Source: Japanese Wikipedia, translated)