When diligent office worker Rei Whitmore collapses without warning, doctors call it stress. But beneath the fluorescent lights of her workplace lies a hidden geometry and a sigil traced in blood. Each time she loses consciousness, she awakens somewhere else. A silent corridor. An empty train platform at midnight. Guided by fragments of memory and pursued by unseen hands, Rei must uncover the truth behind the symbols beneath her - before the next syncope becomes permanent.