After a long day at work, paralegal Aki Konishi is shocked to come home and discover a mysterious man who claims her sister is his betrothed—only to see him whisk her sibling away through a magical portal. Determined to rescue her, Aki chases after them and is thrust into a world beyond reality. Amidst her quest, she crosses paths with a charming hero, a rugged mage, and a handsome priest, all entangled in a battle against the malevolent Dark Lord. Despite being an ordinary office worker, Aki finds her place among these heroes by taking on the role of their secretary. Can she outwit the Dark Lord and save her sister? Dive into this captivating fantasy light novel with a unique twist on the secretary trope to uncover the thrilling outcome!