After aging out of the orphanage, Y/N has nowhere to go. She takes a live-in housekeeping job for one of the richest families in the country. The salary is almost too good to refuse, and the rules are strangely simple: * Never enter the east wing. * Never ask about the previous housemaid. * Never leave your room after midnight. * If you hear footsteps upstairs… ignore them. The family consists of a handsome billionaire husband, his graceful but intimidating wife, and their quiet young daughter who barely speaks. At first everything seems normal. Until Y/N notices things. The daughter’s drawings always include a woman hanging from the balcony. Fresh muddy footprints appear every morning despite no rain. She hears someone crying inside locked walls. Someone keeps leaving handwritten notes in her room. You’re next. When Y/N starts digging into the mansion’s history, she discovers every housemaid hired before her disappeared. None of them ever officially quit. And someone inside the house knows exactly what happened.