Reddit reviews Attack on Titan: The Harsh Mistress of the City, Part 1
We found 3 Reddit comments about Attack on Titan: The Harsh Mistress of the City, Part 1. Here are the top ones, ranked by their Reddit score.
Kizumonogatari and this Attack on Titan thing
Amazon has em'. Here's a link to book one for convenience. There's probably other bookstores that'll let you order online, too.
It only exists as a novel that you must buy (haven't found any place online where you can read it) Here it is on Amazon.