On their first day as new hires, Ayaka, Chieko, Shinna, and Shion step into the sleek offices of a bustling corporation, eager to prove themselves. Routine introductions and training sessions soon give way to unsettling encounters with senior staff, leaving the women exchanging uneasy glances across their desks. Whispers of odd company policies circulate quietly among the newcomers, sparking initial doubts about the professional environment they have joined. By evening, the quartet senses that something unusual is unfolding beneath the surface of everyday work life.