[This article is also called "The Hidden Girl"]
A hermit can only hear his name but not see his face.
The eldest daughter of the Daimyo of the Land of Water [Sachiko Matsumoto] lost her family after the coup. Fortunately, a maid risked her life and begged to escape from the burning side hall of the Daimyo Palace.
Three days later, Kirigakure Jonin Fujita Kazuno completed the assassination mission and returned to the blood mist. He picked up a young girl who covered her face with a mask all day long and claimed to be disfigured in the fire-Fujita Hidden Girl.
Since then, a story that runs through the second half of the Second Ninja War has begun.
One sentence summary: The revenge of the double-faced princess.