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Nazo no Kanojo X  
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One day, a strange transfer student appears before Tsubaki. Urabe Mikoto is an antisocial girl, whose hobby is just sleeping during class-breaks. One day, Tsubaki goes to wake her up and accidentally tastes her drool... And gets hooked on that!

After that, he starts going out with her and gets to know her better. Her second hobby, as it turns out, is carrying around scissors in her panties and cutting paper into flowers...


Related Series

Associated Names
Загадочная девушка Х
Kekasih Misteri X
Mysterious Girlfriend X

Groups Scanlating
Aizome Scans
Eval Powar

Latest Release(s)
c.88 by TKTranslate (634d ago)
c.92 by Crunchyroll (733d ago)
c.91 by Crunchyroll (764d ago)
Search for all releases of this series

Status in Country of Origin
12 Volumes (Complete)

Completely Scanlated?

Anime Start/End Chapter
Starts at Starts at Vol 1, Chap 1
Ends at Ends at Vol 5, Chap 36

User Reviews

15 topics, 81 posts
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User Rating
Average: 8.1 / 10.0 (1127 votes)
Bayesian Average: 8.06 / 10.0
 28% (313 votes)
 19% (218 votes)
 21% (242 votes)
 16% (177 votes)
 7% (79 votes)
 3% (38 votes)
 2% (22 votes)
 1% (12 votes)
 1% (14 votes)
 1% (12 votes)

Last Updated
September 20th 2016, 6:40pm PST

[Image Disabled for this Series]



Category Recommendations





Original Publisher

Serialized In (magazine)
Afternoon (Kodansha)

Licensed (in English)

English Publisher
Vertical (3 Volumes - Ongoing)

Activity Stats (vs. other series)
Weekly Pos #631 increased(+61)
Monthly Pos #876 increased(+187)
3 Month Pos #1320 increased(+51)
6 Month Pos #1371 decreased(-110)

List Stats
On 4181 reading lists
On 1032 wish lists
On 881 completed lists
On 251 unfinished lists
On 380 custom lists

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

Forum Posts
Mysterious Girlfriend X Ends Next Month 697 days, 9 hours, 6 minutes ago
Crunchyroll simulpubs of Nazo no Kanojo X 958 days, 12 hours, 15 minutes ago
Urabe fetishes 1413 days, 10 hours, 45 minutes ago
Chapter 21 Spoiler/Frustration 1590 days, 0 hours, 58 minutes ago
Timeline Confusion 1590 days, 1 hours, 15 minutes ago

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User Comments [ Order by usefulness ]

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Patience worn out   
Rating: 5.0 / 10.0
by McCasper
April 5th, 2010, 2:08pm
I put off reading this series when I first saw it because I thought that the whole drool thing was to weird for me. Then when I started reading it I was pleasantly surprised by its charm and novel concept. Skip 30ish chapters later and I feel like I'm forcing myself to just catch up so I can stop and at least say that I gave it a try.

Like in a relationship where minor, annoying habits become huge problems years later I just couldn't put up with it anymore. We are told at the beginning that male lead will be the female lead's first and they already got this drool thing going but then nothing happens. Literally the only progress in the main relationship is that on the condition that male lead would otherwise get hurt, he is allowed to hug his girlfriend, otherwise he gets attacked with scissors. Okay, I know that others might prefer a slow pace but come on. The pace is so slow it makes you wonder if they're moving forward at all.

... Last updated on April 12th, 2012, 1:59am
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Rating: 7.4 / 10.0
by simpleeyelid
April 4th, 2010, 1:11pm
I got bored for several chapters, maybe because of some repetitive humors. However, up to now, for me, the plot is still not too bad, kind of compact, and everything seems to make sense. And I was sort of moved for several chapters: for example, the one talking about him and his sister in the festival.

People doubt that this series will end in two or three chapters... I did not want to accept, but I think they might get the right prediction; I kind of hoped it could last for a little bit longer.

Well, hitherto, there is no way for me to rate this higher than NHK, which I finished one week ago and I gave 7.5...

... Last updated on May 4th, 2010, 3:55pm
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Must be read carefully to appreciate   
Rating: N/A
by Manji88
March 24th, 2010, 7:01pm
First of all, I love this guy's art. His previous work (like Discommunication) was overwhelming--each panel looked like one of the occasional "dream sequences" he puts into X. Here he's opened up the space in his art, concentrating on the characters, and developed a new, lighter line with less spot black. And it's all a matter of taste, but I find his girls as cute as hell.
Some previous reviewers have commented negatively on things like how Urabe won't let him hug her, etc. But I disagree. Remember, Urabe said right at the beginning of the series that he's the man she's first going to have sex with. And as you see in the story, each step along the way is not only controlled by them, but, in a way, by their "bond." Urabe doesn't want to move ahead of where that mysterious "bond" wants them to be. I admit it's a little slow. You'd think that when she starts getting sexually excited due to the progression of the "bond," things might heat up a little more than they have. But it's just not "that kind of comic," apparently. Regardless, there are always lots of fun little stories and Ueshiba's fascination with how sexual relationships develop between juveniles provides him an opportunity to experiment, playing "what if?"
Fan service? Sure. But it is, after all, about the relationship between two teenagers who are "destined" to be sex partners, and a few panty shots are not exactly out of bounds. You've got to give the poor sex-starved boy something to get nosebleeds about, after all.
So far I've enjoyed the hell out of it, more than any romantic comedy I've read in years.
The recent Imai storyline has me a bit concerned about where's he's going, but it's fun to see Urabe be both reluctant (in her usual way) and and the same time kind of intrigued by the unique opportunity she's being offered. She could certainly tell them to go pound sand and walk out, but she doesn't. Even some of her dialog was charmingly cute and hesitant at that time.
Anyway, I look forward to reading it every month.
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Weird but to my taste.   
Rating: 10.0 / 10.0
by 0sirt
March 19th, 2010, 7:03am
One word to sum it up ... Weird.
BUT it's not unlikeable, in fact I even loved it (10/10) and I definately do not have any kind of drool related fetish.
The art is ... um ... good in it's own way I guess.
The male protagonist is your average boy while the girl is mysterious, weird and (in my opinion) likeable.
Even though I think of this manga as weird, it doesnt make you think too deeply about it, it even manages to stay lighthearted and refreshing which is what made me love this manga in all its weirdness (I think).
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Rating: 9.8 / 10.0
by monkeyvoodoo
March 11th, 2010, 12:44am
Took about 10 chapters before the very concept this whole story is based around stopped making me gag every time it came up. Ignoring that, there's a lot of unconventional, yet fanservice-y stuff that's likely the cause for this seties' high rating. I will say that the first volume or two felt really brilliant, as far as using unique ways to present the idea of romance and sexuality, but that was quickly lost due to repetetiveness, and a general lack of direction in the plot.

I still thoroughly enjoy reading every chapter of this, I just wish I felt like the story was going somewhere, and not simply being dragged out in order to sell books.
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Stays Just Fine   
Rating: N/A
by Hell_Clues
February 24th, 2010, 10:34pm
Sometimes it can be a really cute, and sedately funny series. Other times the side characters can be so annoying, pushy, and manipulative. That is the part I dislike, almost all the side characters are like this too, and it comes off very artificial and not funny. Some are fine like his sister and friend, and others don't have it as bad all the time.

There was a time when I thought the two's dynamic might had started getting repetitive but then the writing got interesting again. In fact, I'd say most of the arcs aren't all that good. They aren't at the heart of this series.

... Last updated on January 20th, 2013, 5:04pm
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Strange Romance Story   
Rating: N/A
by charsiewpau
October 17th, 2009, 8:52pm
Underneath it all, it's a romance story, but with a not so natural twist. Good as a relaxing read, but if you want something though provoking, this is NOT it.

... Last updated on October 17th, 2009, 8:53pm
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Lovingly Odd.   
Rating: 10.0 / 10.0
by SharpMonkey
September 6th, 2009, 11:13am
I actually really love this! I was originally put off by the whole drool thing and Urabe's personality, but it all just adds on to the story. I'm rather glad that Urabe doesn't have a completely anti-social and gloomy atmosphere around her.

All of the exciting encounters that Urabe and Tsubaki have make me all giddy and tingly. That's how an ecchi manga should be. This manga is just too cute!
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Interesting but slow   
Rating: 9.0 / 10.0
by badbob001
August 7th, 2009, 7:06am
The interesting title got my attention and I wasn't disappointed. Maybe it's because it's a monthly series, but the story and character development moves pretty slowly... almost to the point of being routine. I hope the story picks up since 'mysterious' is not that interesting if there is no substance behind it. Reminds me of a G-rated version of Sundome, another manga about a dominant mysterious girl.
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Slightly interesting and the humor is decent, but a bit repetitive   
Rating: N/A
by The Solipsist
July 10th, 2009, 4:02pm
The concept is alright. There's the stereotypical "boy-who's-a-complete-wimp-around-girls-and-embarassed-of-his-own-sex ual-urges" protagonist, but he's given a female interest who is an odd but forceful character, something that adds a bit of novelty. There's apparently some psycho-physical connection that occurs between these two and their drool. This is something which only requires a slight suspension of disbelief to enjoy, but the transferring of pain/cuts/bruises later on in chapters is a bit much. A few more hours in the mangaka's head could have fine-tuned the basic idea.

I found the gags funny for the first 15 or so chapters. The gags made full use of the concept's novelty, too, and were refreshing. But to be honest they really start striking like clockwork and after a while you know exactly when a specific gag is going to be used. Open mouth, insert finger, oh-no-what's-this-warm-feeling, scissors, oh so that's what you're thinking about, don't hug me, scissors, hey you don't hug me. This is where I have to agree with "hamburgers" review. It's ridiculous to have to ask your girlfriend for a hug. Not to mention most adolescent couples can't get their hands off each other. From what I understand the manga does this to create tension and to keep you reading: the girl states early on that the protagonist will be the one to take her virginity, so we, the reader, are kept wondering every step of the way when it's gonna happen. Every hug, every touch, puts the reader on his toes. Unfortunately, the ungodly amount of finger sucking required to churn the character development in this manga makes it frustrating to read, especially as you witness the protagonist forbidden from basic things like hugging and calling his girlfriend by her first name (I know the first name business is a japanese thing, but I'd say sharing entire emotional states is intimate enough...give the boy a break...). Sometimes I think this manga is just an overblown, elaborate parody of the whole "wimpy teen protagonist" genre.

The art has some personality and works to the gags. It's nothing special, but it works.

The pacing in particular has some issues, but I'd say this area depends on your tastes and how long you can put up with the protagonist per read.

Overall, I found myself reading this and enjoying it, despite my nitpicking and frustration. I'm hoping some interesting twist comes (that moon in the backgrounds comes to mind) as far as the mystical drool (no aliens, please), but I'm not getting my hopes up as this manga has been pretty light-hearted, aside from the fan service drops here and there.
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