Shibou Yuugi de Meshi wo Kuu.

Yuuki wakes up to find herself wearing a maid's uniform in a strange manor. After wandering into the dining room, she comes across five other girls, each in the exact same outfit. Soon, the girls learn that the manor is brimming with lethal weapons and an array of deadly traps…and that they can only escape by playing the most gruesome of games. As...