Nozomi owes her life to a mysterious benefactor that sends her money every single week. Her parents had abandoned her, and she considered herself no less than an orphan- and from a young age, with what little education and money her parents had left her, she went through school and survived. She originally thought that it might be her parents who had sent money to her- but she realized that it wasn't. She tries to use the clues given to her to find who her benefactor was, at the same time dealing with another person, her secret admirer.