Mizu Mahou Gurai Shika Torie Ga Nai Kedo Gendai Chishiki Ga Areba Juubun Da Yo Ne?

A five-year-old orphan named Frim, struggling to survive on the streets of the slums, recalls memories of Her past life as a Japanese person. Her everyday life is filled with violence and injustice, and She has no allies. All She possesses are "magic that can produce water" and "modern knowledge." Even finding a place with a roof to sleep under is a luxury in her current situation... However, by using ideas that dont exist in this world to improve his working conditions and discovering new ways to utilize water magic beyond drinking water, Frim gradually begins to make her presence known!