Cleaning Diary: Hidden Files of Rich Houses

She provides private cleaning services to the top wealthy, and can always restore the clients' unknown secrets through the subtle traces left in their homes. Once, she found ironclad evidence pointing to a kidnapping case at her employer's house. She takes advantage of her career to piece together clues while cleaning the homes of different wealthy people, like diving into an island of information in the deep sea. Little did she know that her actions had been watched by a "behind-the-scenes scavenger" who was observing all the rich.