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Lonely thirty-seven-year-old Satoru Mikami is stuck in a dead-end job, unhappy with his mundane life, but after dying at the hands of a robber, he awakens to a fresh start in a fantasy realm...as a slime monster! As he acclimates to his goopy new existence, his exploits with the other monsters set off a chain of events that will change his new world forever!
Slime and shield are about as similar as stories can get without being the same story. Similarities: develop territories/cities; loaded with healing and support powers; video game like fantasy world with skills, levels, and a game hud; both are too an extent detached from most the other humans but are emotionally closer to Demi-Humans and monsters; both ostensibly start off at the lowest rank and/or essentially on their own with no support from others, organizations, or nations; both deal heavily with biases, prejudices, misunderstandings/false allegations, and the butt of others’ jokes as the weakest and most useless; both grow powerful enough to rival demons and gods; both have a bit of a cynical, disinterested, and practical outlook on life and any one they encounter; and it is implied both game from deaths or near death in their previous worlds, and quite a few other similarities. Differences are a bit harder but one is human and one is monster but both are often called or treated as evil monsters.
Personally, I like the shield story a bit better for a few reasons. Shield outshines Slime in the following ways:
1. It has better writing, and whether the translation is better or the original writing, I can’t say definitively;
2. It has better characters, shield spends way more effort developing characters. We learn way more about them and their past;
3. The development of the land is a bit more practical and obviously done for the residents;
4. Land development starts with far less and much later in the story. He only has a handful up to 70 life forms when he starts;
5. Shield technically starts much weaker. He has greater handicaps and no initial useful cheat skills. Where slime starts isolated and no one knows he exists, shield starts off hated with all the resources he should have started with denied;
6. Shield progresses far deeper into the story and the world he lives in. There are more books written about it. There are more lands, creatures, historic events, backstories, and a far richer tapestry of the alternate fantasy world he is summoned too than slimes;
7. Shield is much more realistic and believable than slime. Things way too often work out way too fast and conveniently in slime. Character wise and depth of world wise, it has way more material to work with. Where shield gets treated unfairly like crap for no practical reason without any justifiable means to even defend himself from accusations and responds in a way quite a few of us could understand especially for anyone ever mistreated;
8. For reasons mentioned in point 7, shield has more to connect with people than slime, while slime is a more wishful thinking type of setting.
Shield does something rarely seen right from the start, he reacts believably when under duress. It is something I simply don’t see enough of where too many characters flip sides and never face reasonable consequences.
Hajime Nagumo and his high school class are suddenly summoned to a fantastical land as heroes. But while most of his classmates have powerful stats and abilities, Hajime does not. Underappreciated and unprepared, he tumbles into the depths of a monster-infested dungeon where voracity and sacrifice are his only options. To thrive in this savage world, he’ll have no choice but to welcome the abyss.
A look back at the trials and tribulations Hajime faced in the dire abyss of the Great Orcus Labyrinth.
The spoiled rookie goddess Ristarte takes charge of salvation of a super hard mode world. She successfully summons a hero named Seiya Ryuguin who has a cheating-level status, but he is incredibly cautious...? When he buys his armors, "I want three. One to wear, one for spare, and one for spare when the spare is gone." In addition to keeping a massive amount of the stocks of items, he stays in his room for weight training until he reaches his maximum level. And even when he fights against a slime, he is cautious enough to use his full power.
The juvenile KAN from the earth is summoned to the Kingdom of Toria , where he encounters attack from the giant creature -Zinba , and he’s rescued by the linker SHIBUKI and URANUS. Later he accidentally gets on the linker squad – DUX truck , to the maze valley, finding in a cave a golden Zinba.
On the night of his favorite game’s shutdown, Akira Oono awakens in the body of his online character: Demon Lord Hakuto Kunai. He’s not the most confident guy ever, and he’s traveling with an injured young girl. But with powerful game mechanics and abilities on his side, this gamer turned badass plots his course through a diverse new world filled with saints, demons, and charming companions!
When Haruhiro awakens, he's in the dark surrounded by people who have no memory of where they came from or how they got there. As the darkness fades, a fantastic new world called “Grimgar” appears before them and their adventure begins—but first, they'll have to choose their guild, class, and special abilities.