Shibou Yuugi de Meshi wo Kuu.

Yuki finds herself unexpectedly thrust into a perilous reality within the confines of the Ghost House, a sprawling and unsettling manor. Awakening in a maid uniform alongside five other young women, she quickly learns they are trapped in a series of deadly trials designed to test their limits. The house itself is a labyrinth of intricate traps – lethal games featuring mechanical horrors, confinement, and perilous weaponry. While the others grapple with despair, Yuki displays an unnerving composure, revealing a past deeply intertwined with this very type of existence. The anime explores themes of fate versus free will, survival under extreme pressure, and the psychological toll of a life dedicated to orchestrated danger. It presents a tense atmosphere of claustrophobia and dread, examining how individuals adapt – or fail to adapt – when confronted with inescapable mortality.