Sono Rettou Kishi, Level 999

Alt title: That Inferior Knight, Lv. 999

If you're looking for manga similar to Sono Rettou Kishi, Level 999, you might like these titles.

Tatoeba Last Dungeon Mae no Mura no Shounen ga Joban no Machi de Kurasu Youna Monogatari

Tatoeba Last Dungeon Mae no Mura no Shounen ga Joban no Machi de Kurasu Youna Monogatari

A young boy with big dreams ignores the neighbors who call him weak and heads to the imperial capital to become a soldier! But when the village you call home is the final bit of civilization before the last dungeon and you're descended from heroes, the word "weak" is completely relative!

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Reasons you might like Tatoeba Last Dungeon Mae no Mura no Shounen ga Joban no Machi de Kurasu Youna Monogatari...

LupaLunae LupaLunae says...

Both are about overpowered main characters who are oblivious to how powerful they are. Both MCs think they are average or below average, and have messed up common sense as a result of the way they were raised. Both protagonists set out to become stronger, not realizing they are already monsters in terms of power. Both stories take place in typical isekai worlds, and both protagonists are young boys.

The Eminence in Shadow

The Eminence in Shadow

Shadowbrokers are those who go unnoticed, posing as unremarkable people, when in truth, they control everything from behind the scenes. Cid wants to be someone just like that more than anything, and something as insignificant as boring reality isn't going to get in his way! He trains in secret every single night, preparing for his eventual rise to power—only to denied his destiny by a run-of-the-mill (yet deadly) traffic accident. But when he wakes up in a another world and suddenly finds himself at the head of an actual secret organization doing battle with evil in the shadows, he'll finally get a chance to act out all of his delusional fantasies! 

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Douyara Watashi No Karada Wa Kanzen Muteki No You Desu Ne

Douyara Watashi No Karada Wa Kanzen Muteki No You Desu Ne

A girl who regrets dying without being filial to her parents, she wishes that in her next life that she will have a body that is invincible. God decides to grant her that wish, she awakes suddenly in the body of a baby... Could this be reincarnation?

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Tenseishichatta yo (Iya, Gomen)

Tenseishichatta yo (Iya, Gomen)

After a god screws up and accidentally takes high schooler Shou's life, he offers him reincarnation with a gift to make up for it. Shou asks to retain all his old memories for the new life. Shou is reborn as Will, a noble's son in a world where magic use is common and involves knowledge of kanji characters. With all his memories, he's a brilliant toddler, and when he experiments with magic, he finds that he has an amazing talent for it! What's more, though he was smart but unloved in his old life, in his new life he has a mother and a father who both love him deeply. His future as Will is looking very bright!

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Jii-sama ga Iku

Jii-sama ga Iku

Due to a god's mistake, 73-year-old Seitarou Asao, who runs a tea plantation gets transported to another world in the place of his grandchild. He then starts a second life 10 years younger as 63-year-old Seitarou. Through is wisdom of an old man and "assistance magic," he is able to live a leisurely life in his new home.

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The Magic in this Other World is Too Far Behind!

The Magic in this Other World is Too Far Behind!

Suimei and two of his best friends find themselves mysteriously summoned to another world. There’s a cute princess, magic galore, a Demon Lord that needs to be defeated, and a world that needs to be saved—the works! Too bad Suimei isn’t interested. His friends are all too ready to play the parts of heroes, but Suimei just wants to get home. He has an advantage as a magician... but he’s in for a rude awakening when he finds out what actually passes for magic in these parts.

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The Great Cleric

The Great Cleric

One man’s story of turning blood, sweat, and tears into a successful living—literally! After his untimely death as the hardest-working salary man in Japan, Luciel is reincarnated into the magical fantasy world Galdardia. Always the man with a plan, he recreates himself to be a healer, and sets about making his way in the world. But while Luciel knows a thing or two about making money, he knows absolutely nothing about Galdardia. Will his good heart and great work ethic be enough to make him…The Great Cleric?

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Hachinantte, Sore wa Nai Deshou!

Hachinantte, Sore wa Nai Deshou!

Ichinomiya Shingo, a young 25 years old, single, worker of a firm company goes to sleep while thinking of tomorrow's busy day. However the moment he woke up, it's a room unknown to him and he is inside a 6 year-old boy. He then learns a lot from the memories of the said boy: he was born as the youngest child in a poor noble family living in back country. Having no administrative skill, he can't do anything to manage the vast land his family has. Fortunately, he is blessed with a very rare talent, talent of magic. Unfortunately, while his talent could bring prosperity to his family, in his situation it only brought disaster. Yes, this is the story of the boy, Wendelin Von Benno Baumeister, opening his own path in a harsh world.

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Jimi na Kensei wa Sore Demo Saikyou desu

Jimi na Kensei wa Sore Demo Saikyou desu

A Japanese student named Shirokuro Sansui died because of God’s mistake and was teleported to a different world. He claimed that he wishes to become ‘the Strongest’, so he received a referral letter for a Sage from God and received 500 years of training. When he reached a stage where he could be called as ‘the Strongest’ in the common people’s standard, he picked up a baby near his training grounds, and there, he finally starts his isekai adventure. His training is simple, his techniques are simple, he’s ‘the Strongest’ but he looks simple. With an ordinary wooden sword in hand, the fight of the simple-looking Sword Saint has just begun.

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Tensei Kizoku no Isekai Boukenroku: Jichou wo Shiranai Kamigami no Shito

Tensei Kizoku no Isekai Boukenroku: Jichou wo Shiranai Kamigami no Shito

Shiina Kazuya, our protagonist who got killed by a stranger when he tried to protect his childhood friend and little sister, reincarnated into Cain Von Silford as the third son in the world of sword and magic. Cain grew up being surrounded by Gods who doesn’t know self-esteem, the upper noble and the girls who are swayed around him. Being given so many protection from the gods, he overcame any obstacle (aka Flags) while hiding his unbelievable status. The noble path fantasy story of a young boy who sometimes wicked and clumsy.

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