Mana is the protagonist’s friend in their original world, accompanying them to a mall event featuring LBX model displays—a shared outing that underscores their bond. This routine excursion spirals into chaos when an unforeseen phenomenon during the event abruptly transports the protagonist to a hostile alternate dimension. There, humanity faces extinction under the onslaught of invasive metallic lifeforms. Mana’s presence anchors the protagonist’s past life, her role crystallized in catalyzing this pivotal transition, though her influence beyond this inciting incident remains undefined.