Isayama has named Berserk among the manga that shaped him, and the debt is tonal before it is visual: a dark fantasy where the protagonists are outmatched by design, named characters die without ceremony or arc, and the horror comes from enormous bodies doing something obscene to small ones. The Eclipse and the fall of Shiganshina are staged the same way, as a massacre the reader watches a survivor fail to prevent, and both series are about what somebody becomes afterwards.