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Kenja no Mago   
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A young man who had surely died in an accident, was reborn in another world as a baby! After that, he was picked up by the patriot hero "Sage" Merlin Wolford and was given the name Shin. He was raised as a grandson by Merlin and soaked up Merlin's teachings earning him some shocking power however, when he became 15 his grandfather Merlin said: "I forgot to teach him common sense".


Related Series

Associated Names
Cháu trai của Hiền Giả
Cucu Sang Pertapa
El Nieto Del Sabio
Il nipote del saggio
Le Petit-fils du Sage
Magi's Grandson
Wise Man’s Grandchild
Внук мудреца
حفيد الحكيم
현자의 손자

Groups Scanlating

Latest Release(s)
c.76 by Tritinia Scans about 1 month ago
c.75 by Tritinia Scans 3 months ago
c.74 by Tritinia Scans 3 months ago
Search for all releases of this series

in Country of Origin
22 Volumes (Ongoing)

Completely Scanlated?

Anime Start/End Chapter
Starts at Vol 1, Chap 1
Ends at Vol 6, Chap 21

User Reviews


User Rating
Average: 6.9 / 10.0 (260 votes)
Bayesian Average: 6.84 / 10.0

Last Updated
May 19th 2023, 10:26pm



Category Recommendations





Original Publisher

Serialized In (magazine)
Young Ace Up (Kadokawa Shoten)

Licensed (in English)

English Publisher

Activity Stats (vs. other series)
Weekly Pos #591 increased(+57)
Monthly Pos #1138 increased(+150)
3 Month Pos #1569 decreased(-105)
6 Month Pos #1752 increased(+197)
Year Pos #1714 decreased(-291)

List Stats
On 2616 reading lists
On 305 wish lists
On 29 completed lists
On 94 unfinished lists
On 350 custom lists

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User Comments  [ Order by usefulness ]
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It's just doesnt make sense.  
by villasan
February 20th, 2023, 3:52pm
Rating: 6.5  / 10.0
Lore wise speaking doesn't make sense.
Plot development won't.....
Spoiler (mouse over to view)
won't follow magic mechanic's direction, like the Gate Spell that is completely ignored as a major strategic advantage in the battle field, or the flying magic that may be essential at info gathering. Ever since chapter 24 the story has been increasingly growing of loopholes nonstop. Seems like author is hopeless of quelling his own inconsistencies at this point... Going from chapter 60 onward; the manga is desperately trying to shift to a Shounen like development instead of the original Seinen fundation, which may be a desperate response of losing popularity??? idk....

In any case, this may be not a bad reading, it's fun, interesting and ( ͡° ͜ʖ ͡°), but is rather inconsistent, each arc (3 of them by now) is like talking about completely different mangas from each other; different story telling, style, background, even the drawing style changes, sometimes it feels like the main characters are the only thing connecting everything together.

If you are looking for a good Seinen read, the "Seinen" tag in this manga may be one of the most misleading things a have seen in this web (in my opinion, it should be added the "Shounen" tag besides of it).

... Last updated on February 20th, 2023, 3:57pm
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Nice at first  
by TribesX
October 17th, 2022, 10:37pm
Rating: N/A
It's a nice story at first.
OP MC, with only one female lead, and they flirt a lot, it's quite nice.

There are a lot of good things : MC doesn't always win, party has development, etc.

But lots of clichés used again and again (especially the jealous girl trope, and save the damsel in distress trope).

What made me began to loose interest is the bad reasonings why he can't give his technology to the others country or défense's positions. Oh, and the author forgot that half of the party learnt gate.
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It's Fun  
by Yunwu
August 7th, 2022, 10:14am
Rating: 10.0  / 10.0
It's a fun read where the MC is OP and falls in love at first sight. It has comedy, romance and action scenes. My favorite part was...

Spoiler (mouse over to view)
Where the demons tried turning the MC into a demon, even though they failed. I've always liked the idea of a good MC turning evil.

Really, it's amazing that we have a Japanese isekai manga where the MC is only dedicated to one female. It seems like a lot of people complain about how the MC just falls in love at first sight, but you know, that happens in reality too. Humans tend to judge people based on appearance first. Which is why many people usually falls for a person's looks first before getting to know them. The MC and FL just shows it easily.

While there might be some...well, okay, a few cringey scenes, it's not intended to be serious. Hence the comedy tag. To be honest, this is the kind of manga where you don't think too deeply about it and just enjoy it for what it is. But if you're the type to strongly critique every manga you read, you won't enjoy reading this.

... Last updated on August 7th, 2022, 10:19am
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March 31st, 2022, 12:03am
Rating: 10.0  / 10.0
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Made me feel a bit sick  
by Seregosa
November 12th, 2020, 7:30pm
Rating: 2.0  / 10.0
The characters in this manga sickens me to the core. Maybe I could've enjoyed it immensely back when I first started out reading manga at the age of 8-10. It's pathetically bad in terms of story and characters. It has all the tropes that makes you question if the author isn't a bit too stuck in the times of 20-30 years ago. I would say this is catering to children, at most early teenagers.

We have the mc that is ridiculously powerful for no good reason. Unlike a decent novel or manga, it isn't justified even a little. The power system reeks of nonsense. Why is he this powerful? For what reason? Why would kanji be usable? Why would the amount of characters be what matters instead of the amount of effect/power these words contain? There are no clear power levels for any of the characters, clearly the author just adds whatever he feels like. The mc is only OP and better than everyone else because the author seems to think it's cool, not because it makes sense, because he earned it or any other reason, I can't really get behind that unless it's a true comedy/gag novel with nothing else going on, not this mess of a pretend drama(the author tries to put in drama, action and stuff like that but fails spectacularly over and over again, it feels way too artificial/ridiculous).

Even if we ignore this, and I am perfectly capable of doing so, it doesn't help that everyone around the protagonist are retarded. Questionable motives, utterly illogical relationships etc. Everyone seemingly only has one or at most two sides to them, in other words, they're all flat. The protagonist is a doormat who seems to fail grasping even basic common sense despite being reincarnated from modern day japan. The author explains this away by the "logic" that the "common sense" is supposedly "different" in this world, but the story proves this theory wrong. In essence, the author trips himself up by denying the entire concept of the world's common sense being even slightly different from our own. It's just that the protagonist, somehow, is completely out of touch with reality and with an added dash of being an utter moron and airhead, he seems incapable of noticing even slightly how his actions might be abnormal. I'm not too fond of character's lacking everything in the brains department, even more so when he's far from the only character where that's true.

He gets pushed around by people and is all too happy to be screwed over. Despite his two lifetimes and powers, he's acting like a powerless and exceedingly simple 10 year old that sees the best in people and doesn't want to harm others.

Perhaps the most off-putting part of this manga isn't this, however. I find the romance to be so bad I struggle to not cringe and squirm in my chair over how bad it is. The protagonist falls in love instantly upon catching sight of the heroine, proclaiming that she's insanely cute, and the heroine instantly starts blushing, acting shy and being dazed because she's so absorbed in how cool he is and how heads over heels she fell for him all of a sudden at their first meeting when they hadn't even spoken to each other yet. Sorry, romance does not and will never work like that, any author utilizing actual love at first sight without prior interactions are too stupid for words. I get being slightly struck by desire, but that is at best a carnal desire, not one of romance or love at all. It doesn't justify acting like this. That carnal desire could gradually turn into love once you've verified eachother's personalities and have spent some time together, but not before that. After that, it's just a train of cringe. The mc wants to protect her for no good reason, she loves him to the point of insanity. The repeated attempts from the author trying to show her cuteness failed to hit home as well. Yup, she's a cutesy character, but she's also a moronic airhead, the type of character that was popular long ago. She has nothing at all in the brains department, she's exactly that cute object that is supposed to just be the "ideal" of the overly obedient woman that loves you to death. She has no proper emotions, being more akin to a fluffy little animal than an actual girl. Her purpose is to be as cutesy as possible with nothing else going on. I really can't stand that type of girl in the first place but this manga really made it as bad as possible.

Dropped after around 10 chapters, as each chapter is around 50 pages, I really can't justify trying for this long. Please don't read this unless you're really young or haven't read any novels or manga before. Even then, it would be better to read some better manga.
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Something Quite Bad  
by NationsFather
May 14th, 2020, 7:17am
Rating: N/A
The part is one would expect but the characters in this manga are quite bad as like lucia manga, the MC with his un-common sense (which makes no sense given he retains his experiences from his previous life and he was an adult) and the shy and cute bundle of worm fuzziness of the leading female. There is too much melodrama here and too many forced heartwarming moments. It's really hard to read, dropped after a few chapters.
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The better side of average.  
by ChaoticOrder
October 18th, 2019, 5:14am
Rating: 6.0  / 10.0
Let me just say that I have only read the manga adaptation for this series. It's pretty standard for an Isekai
Don't go into this one expecting a grand story. There is a nice romance between the MC and the heroine. The heck, one of the main points of the story and it's biggest quality and greatest difference to other isekai novels is the relationship with the heroine. He and the heroine unintentionally flirt with each other nonstop and annoy the other characters because of that.

Good for a read to pass time.
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Quite Bad  
by PZcolo
June 26th, 2019, 3:25pm
Rating: 3.0  / 10.0
Another isekai with an overpowered MC, that part is one would expect but the characters in this manga are quite bad, the MC with his un-common sense (which makes no sense given he retains his experiences from his previous life and he was an adult) and the shy and cute bundle of worm fuzziness of the leading female. There is too much melodrama here and too many forced heartwarming moments. It's really hard to read, dropped after a few chapters.

... Last updated on June 26th, 2019, 3:26pm
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by melquiades
May 18th, 2019, 8:03am
Rating: N/A
Power fantasy to the extreme without a hint of likeness. That is how i describe this manga.
I read the initial chapters as a side dish in between waiting for other series, but it became increasingly more unbearable as the chapters went by.
I took a peek at the latest chapter to give it a second chance, just to see how the author resorted to artificial drama to justify his paycheck.
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It is what it is  
by firefox1234
May 10th, 2019, 2:33pm
Rating: 2.0  / 10.0
Generic isekai all the way and probably targeting a very young audience, my guess the U-15 range....
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