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Tonari no Kaibutsu-kun  
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Mizutani Shizuku is the type of person who only cares for her own grades. But when she accidentally delivers the lesson notes to Yoshida Haru, Haru becomes convinced they are friends.
Haru turns out to have a very innocent personality, but who would've thought that Haru would actually confess to Shizuku?
A cold-hearted girl x super troublemaker romance with a fresh new perspective.


Related Series

Associated Names
Чудовище за соседней партой
الوحش الجالس بجواري
وحشي الصغير
옆자리 괴물군
Bestia z ławki obok (Polish)
Le garçon d'à coté (French)
My Little Monster
My Neighbor is a Strange Classmate
Quái Vật Bàn Bên
The Monster Next to Me

Groups Scanlating

Latest Release(s)
v.13 c.Side Story 4 (end) by Titania over 3 years ago
v.13 c.Side Story 3 by Titania over 3 years ago
v.13 c.Side Story 2 by Titania over 3 years ago
Search for all releases of this series

Status in Country of Origin
13 Volumes (Complete)
6 Volumes (Aizouban, 2017 - Ongoing)

Completely Scanlated?

Anime Start/End Chapter
Starts at Vol. 1 Chap. 1
Ends at Vol. 4 Chap. 16

User Reviews

6 topics, 30 posts
Click here to view the forum

User Rating
Average: 8.6 / 10.0 (1137 votes)
Bayesian Average: 8.54 / 10.0
 33% (379 votes)
 24% (268 votes)
 22% (253 votes)
 14% (155 votes)
 3% (36 votes)
 2% (23 votes)
 1% (7 votes)
 0% (1 votes)
 0% (2 votes)
 1% (13 votes)

Last Updated
February 13th 2018, 10:59am PST



Category Recommendations





Original Publisher

Serialized In (magazine)
Dessert (Kodansha)

Licensed (in English)

English Publisher
Kodansha Comics (13 Volumes - Complete)

Activity Stats (vs. other series)
Weekly Pos #311 increased(+17)
Monthly Pos #352 increased(+3)
3 Month Pos #324 decreased(-22)
6 Month Pos #299 decreased(-8)
Year Pos #295 decreased(-19)

List Stats
On 3367 reading lists
On 1498 wish lists
On 2073 completed lists
On 190 unfinished lists
On 747 custom lists

Note: You must be logged in to update information on this page.

Forum Posts
Can anyone tell me how this ended? over 3 years ago
Tonari no Kaibutsu-kun Manga to End in 12th Volume over 3 years ago
Yamaken first in popularity poll over 4 years ago
Tonari Question over 4 years ago
My Little Monster Manga Slated to End in 2 More Chapters over 4 years ago

Click to view the forum

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User Comments [ Order by time added ]

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Great development   
Rating: 10.0 / 10.0
by ForbiddenAngel
March 16th, 2012, 2:53pm
The story is enjoyable as soon as you start picking up on the pace. The beginning chapters may appear a bit useless in terms of plot development, but in the end they really are essential to the story. People who drop this manga because it's "boring" haven't reached the point where exciting events are brought upon our main couple by the side characters yet. To be honest, I was about to drop this at around 10 chapters in, but decided against it. That was a great choice on my part, because this story and its characters develop at the same pace you fall in love with it. Every character has depth and some aspect of realism; though abiding general shoujo stereotypes (such as the bad boy, the nerdy girl, the pretty female friend etc) our main characters are so unique and well thought out that despite how strange they seem, it appears they're perfectly capable of being real people!

As previously stated by the other commenters, no one is despicable or generally antagonistic in this story, and as the love polygons shape you can't help but root for all the different characters to succeed with their love.

This said, love is another huge topic in this manga. Not clearly defined and not a hundred percent known by our characters, love is shown clearly with how it is in real life. Unlike most shoujo manga where love appears and our characters are completely aware of it, Tonari no Kaibutsukun shows how love in reality is ambiguous, and the transition into love is never really immediate either.

I won't say this manga is realistic, for obvious reasons regarding manga, but how the mangaka develops the characters and the relationships really mirror what happens in reality. Story-wise, this manga deserves a 10/10.
Aside from the story, the comedic side panels and odd occurances could make anyone chuckle, especially when they're made to soften the mood after a rather serious chapter. The art is beautiful as well, and the mangaka successfully brings out the emphasis in scenes where emotions are shown clearly by the way the faces are drawn.

... Last updated on March 16th, 2012, 2:55pm
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Everything different.   
Rating: 10.0 / 10.0
by Got2runnow
December 1st, 2010, 11:24pm
I thought it was necessary to give a detailed review, since this manga is awesome and all smile

It's extremely rare to come across a shoujo with a cold stand offish female lead who isn't just smart, but blunt and open. I mean, she knows when she has feelings and then she just goes for it. There hasn't been any whining (hopefully she won't ever whine. Seems sorta out of character of her) and her cold personality isn't anti-social. It's more like, "I know what I want, so don't stop me" way. She's really interesting while being normal. Plus she's not stone, so she has facial expressions and reactions. (hilarious ones at that.)

The male lead--So. Freakin'. Adorable. Again, it's rare to come across such a funny/weird lead. Usually he's cold, a delinquent (well, this male lead is called a delinquent but you sorta forget he's a "delinquent.") tempered, class president. You know, one of the many character cliches. This lead is all over the place and it's hilarious. His natural reflex is to hit, yet he's not aware of what hitting does. He desperately wants friends, but cant since is naturally reflex to hit scares (that's not how it is described in the'll see) people away. He's a child--a naive child--in a man's body. Oh, and he's a freakin' genius, somehow. It's awesome. I fell in love with him from introduction. He doesn't fail to surprise you.

There is no "plot" really. Mostly just progression between characters (yes, eventually they form a group. One weird internet loving girl and one normal baseball boy. Oh and a chicken) and friendships. It's not slow, but it's not quick either. It's perfect and done well. Another thing I really loved about reading the manga, was the amount of action on each page. I don't mean literally action, I mean, just stuff. Chapters don't fly by, lets just say. The six chapters seems more like ten or eleven, which makes the story all the better.

Anyways, it's a feel good story. You just read and laugh and enjoy. Light, simple, fun, all done to perfection. What more could you want?
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Rating: N/A
by Jeshia
July 24th, 2011, 5:51am
First of all, the art is just beyond cute, which does set it up for great things. This manga is always very funny, light-hearted, yet does manage to poke fun at manga stereotypes. For example, even though the female lead is atypical, as well as a male with his eccentricities, their friends are the stereotypical "average boy" from shounen/shoujo, and the stupid shoujo heroine–––pretty, yet beyond annoying and way too energetic for my liking.
I really can't understand why people don't like the main character. She's realistic––she doesn't actually put /i/effort/i/ into being cold to people, she's just not a people person, and studying is her priority. There's nothing wrong with that. The author doesn't even take it overboard––her character manages to have depth, focus, and realism. The manga is actually about 3 parts friendship and 1 part romance. Even though the shoujo romance is entirely obvious, it's equally obvious that the author is trying to build a better friendship between them before actually getting them together. This was one of the more refreshing things about this manga, rather than having them get together and then learn about each other.
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Rating: 7.0 / 10.0
by sandyatthebeach1
June 20th, 2013, 12:05am
First off, let me just say that I don't read a lot of shoujo manga. And this is, unmistakably, a shoujo manga, with all the qualities that the shoujo genre generally has- sparkles and all. With that being said, this is still pretty dang good. Good, expressive art, for one- I can easily tell all of the characters apart. They all have unique designs, and it's a great departure from the usual cookie-cutter people who just have different hairstyles. There's good backstory to the characters, too, and there are a lot of unique issues brought up and different situations. It's sort of refreshing; it doesn't break out the mold completely, but it does stretch it, which is nice.

The characters are likable, too. Shizuko, the heroine, is a unique character- emotionally dense, but not obnoxious about it, smart, ambitious, hard-working, and cold. She has her cute moments, though, and Haru, the male lead, has his absolutely adorable moments, although he is childish and irritatingly dense. I find that's a trend in shoujo manga... unrealistic emotional denseness (density?).

And that's where my conflict lies, in the emotional aspect. I really enjoy the story and the characters; the romance is sweet, and everything that happens generally tugs on my girlish heartstrings. But gaaaah, some of the events just... arrrrgh! FRUSTRATING!

Since this is a manga that focuses on the romance and lives between the characters, and it's already eleven volumes long, there's obviously some love rivals and conflict thrown in. But honestly... seeing the love rivals makes me think that the two main characters shouldn't even be together, haha. Yamaken, for example, just makes you want to tease him and be his best friend. He's just so lovable, it breaks my heart to see him totally ignored by Shizuko. All the other characters have a lot of care and development put into them, even the side characters like the love rivals and Natsume. It makes me want to shout at Haru to grow some common sense and goshdarn develop already! He's seriously like a little kid- super possessive, dense and confused, aggressive, selfish, irresponsible... and occasionally ridiculously adorable. Occasionally. But, like I was saying, unless the main characters shape up and get on with their relationship and connect better, I can't even root for them. Which sucks. The other character's relationships and love just make me not like the main characters as much! It makes me conflicted, since it's a nice story, but I literally can't stand to read it anymore. It's sort of painful to see Shizuko and Haru's relationship go by in slow mo while other stuff happens. I wish the author would just get them to directly interact and develop! Random things happen, rivals pop up, and the actual relationship between the main characters that got us hooked in the beginning is completely shoved to the side so that the story can get a few more volumes in.... ugh.

... Last updated on June 20th, 2013, 12:05am
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Awesome manga, great romance, amazing art...boring sidestories   
Rating: 9.0 / 10.0
by korinacaffeine
August 22nd, 2012, 2:55pm
Absolutely gorgeous art, a plot that makes sense, and characters with real feelings and motivations. The only downside to this manga is that the sidestories are hideously boring. I only kinda read the Natsume love interest arc, and basically everything else that didn't involve one of the main characters in some way I just skimmed. I do not care enough about these characters to read entire chapters on them.
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nice slow shoujo   
Rating: 10.0 / 10.0
by Peppermint
July 15th, 2012, 2:03pm
First off the art is great. It compliments the story and never feels awkward. And it's cute.

The plot is slow-paced, but the characters feel natural and there is comedy. The heroine can be compared to a ice-cold tsundere, but she maintains a consistent personality even as she grows. And even though the male lead is possessive over the girl, they still maintain a relationship that makes them equals. Which doesn't happen often in shoujo. But there is a lot of dialogue and not much angst at all. It feels very slice-of-life.

... Last updated on July 16th, 2012, 4:53pm
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hardly praise   
Rating: 9.0 / 10.0
by Bebe~
June 28th, 2012, 11:32pm
I hardly praise a good shoujo manga. At first I didn't think it was all that special but I liked how the relationships developed. Their personality also grew. People matured! You rarely find strong headed heroines in a shoujo manga like Shizuka! And guys who openly display how attached they are to the one they love.
I know she grew up a loner and all so she's new to these kind of friendships and relationships but her way of thinking is too blunt >_>. At first, she doesn't try to get to know him better...I really hope for the best! You can see her slowly changing and falling deeper in love with Haru <3

... Last updated on June 29th, 2012, 8:54am
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NAGOYAAAAAAAAA \(>.<)/ <3   
Rating: 10.0 / 10.0
by fictionalscience
October 15th, 2012, 8:10pm
I've just read the last chapter scanlated (vol 9, ch 33) and I don't understand why some reviews say this is boring and/or frustrating. I think the plot is very much like slice-of-life genres. Very normal things repeat, but every time the plot moves forward (perhaps quite subtly). If that's not your thing, then I guess you'll find this manga boring. As for "frustrating", the story is how Haru & Shizuku develop their relationship, from being frustrated with one another, to learning how to communicate their feelings better and build a stronger, more secure relationship. I don't think the development is too slow (I'm the kind of person who easily drops series, but this one kept me interested), and it sure isn't unrealistically fast (that latter one, I might drop).

I think this manga is primarily driven by the combination of characters (and their development, and the development of their relationships). But I think it's very sweet that even though they might intimidate one another, the characters are all good people, and this is the optimistic story of how they try to get along. My favorite characters are the weird (but unbelievably good-looking) misfits Haru and Natsume XD It might be an overdone old trick, but I feel as if I'm the one falling in love with Haru. This applies for the artwork for all the characters, but especially with Haru, he's such a squishy, baby-faced, ridiculously hyper teenage boy (with a dark, violent, emotionally unstable side), that I find it impossible not to love him because of how the mangaka draws him.

Speaking of Haru's dark side, another point that makes this manga more than just a typical school life romance is how the subtle hints and short flashbacks related to the characters' older family members imply that something less than innocent from the adult world is hovering around the main characters' "simple" teenage lives the entire time. But I think that "darker side of life" emphasizes even more the beauty of youth, wasting time to have fun, and raising a pet chicken, lol.

Edit: I've finally finished reading the series! I think the ending feels a bit rushed and sort of anti-climactic. The story does explore a bit deeper psychologically into Haru & Shizuku's characters and background, and show how they grew together to build a relationship. But I think there are still a lot left that could be made into stories (and there are some things that were left unexplained, especially about their families). However, I'm not going to change my rating, because what WAS written is still wonderful and lovable smile

... Last updated on September 27th, 2013, 7:23am
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Smart, psychological romance   
Rating: N/A
by arrha
December 27th, 2011, 10:53pm
It's surprisingly deep and even quite dark. I'm especially intrigued about how it tackles:
1.) TEENAGE LOVE in all of its guises (or disguises?). Is it love? Is it infatuation? e.g. the main couple, up to the very recent volume, are still trying to figure out whether the thing they feel is love or just a spur of the moment emotion brought on by their circumstances.
2. The rather dark personalities of the main guy lead (Haru) and the other characters involved with his past (e.g. Yamaken) that the author skillfully weaves with the characters' "fun/comical" quirks. For example:
Spoiler (mouse over to view)
Haru is possessive to the point of being violent. He even talks about wanting to break the main girl's arms and legs so that she (Shizuku) would not be able to leave him.
This manga is definitely more along the lines of Mars (Fuyumi Souryo) than say series like Koukou Debut or Ouran.
3. Very exciting love triangle is all I can say. Well-developed and very fun!
PLUS: The side characters are also interesting to read about, they're not just 'background cast' but characters with their own opinions, aspirations, etc. The authors also spend time and panels to delve into the histories of these characters and shows us how such could affect the way they react to the current story.

... Last updated on December 28th, 2011, 10:14am
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Rating: 9.0 / 10.0
by Pinky Poison
May 20th, 2013, 4:32am
I was reluctant to continue to read this manga cos I actually dropped this series a long time ago. However, I decided to watch the anime yesterday and you know what.. IT'S AMAZING UGH. WHY DIDN'T I REALIZE IT SOONER ?!

I have no idea, I used to find this manga pretty boring though. But omg, the anime version is SO GOOD. I love the characters, they're all lovable \(^.^)/

I fell in love with Haru. He's such a sweetheart. I loooove him when he's together with Shizuku. They make such a cute couple.


Awwww he's a cutie. I love how he always blushes whenever Shizuku starts talking to him. But I guess he doesn't have a chance to be with her in the end. Aaah. But I'm still rooting for you. <333333333

Why did the anime end so fast though? I hope there's gonna be a new season soon. I'm looking forward to it! smile I've decided to read the manga again, it's not as good as the anime though. I prefer the anime version, but it's ALL GOOD. At least I get to see my Yamaken-kun lol. <33333333333

Overall, I had a great time watching and reading this series. Totally recommend!! smile

... Last updated on May 20th, 2013, 4:34am
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