Yūko Okonogi and her family move to Daikoku City, the central hub of technological advancements in the semi-virtual world, ten years after the introduction of AR glasses and internet-connected visors. Upon arrival, Yūko joins her grandmother's teenage "detective agency," equipped with powerful virtual instruments and metatags. It's not long before Yūko meets Yūko Amasawa, a skilled hacker determined to solve the mystery behind a virus that emerged from an inaccessible, corrupt location.