Mop Girl (モップガール, Moppu Gāru) is a television drama series based on the novel of the same title by Miaki Kato (加藤実秋, Kato Miaki); it recounts the adventures of Momoko Hasegawa, played by Keiko Kitagawa, who possesses the ability to travel back in time upon contact with belongings of a deceased person with unfinished business in life. She then has the chance to prevent the death of the would-be deceased.