Naofumi is summoned as a legendary hero only to be framed and shunned by the kingdom. He must survive alone with nothing but a shield and a burning desire for vindication.
Why it's similar: Both series center on a protagonist who is betrayed by the very people they were supposed to protect. Like Hajime, Naofumi starts as the 'weakest' hero and adopts a cynical, pragmatic worldview to survive in a hostile world.
Power comparison: While Hajime uses guns and alchemy, Naofumi focuses on defensive skill trees that unlock unique utility and counter-attacks. Both rely on 'absorbing' items or monsters to unlock new abilities.
Why watch after Arifureta: From Commonplace to World's Strongest: Watch this if you want a more emotional, long-form redemption story where the hero slowly regains his humanity through his companions.