Ranked #1222

Nazo no Kanojo X (Manga)

Nazo no Kanojo X

Alternative Titles

English: Mysterious Girlfriend X
Japanese: 謎の彼女X


Type: Manga
Volumes: 12
Chapters: 96
Status: Finished
Published: Aug 25, 2004 to Sep 25, 2014
Authors: Ueshiba, Riichi (Story & Art)
Serialization: Afternoon


Score: 7.881 (scored by 8483 users)
Ranked: #12222
Popularity: #224
Members: 16,829
Favorites: 901
1 indicates a weighted score
2 based on the top manga page. Please note that 'R18+' titles are excluded.


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...

(Source: MU)


Nazo no Kanojo X will be published in English as Mysterious Girlfriend X by Vertical Inc. under the Vertical Comics imprint in omnibus volumes. The first volume is set to be released in spring 2016. The series was digitally published in English by Crunchyroll.

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Write a review | More reviewsReviews

Oct 2, 2008
After looking at the first sites of manga i thought: "What the bloody..?!", but since I had exactly nothing to do I started to read it, and, obviously, became addicted.

I don't know if author had some serious memories coennected with drooling girls in school or what, but he made a fabulous comic.

Not much too tell about it. Two young people in their school years. Anything other can by explained with tags. There should be also an "ecchi" tag, though.

Oldschool. A bit like "Ranma 1/2".

Although the plot is a bit.. paranormal.. you might say, that all characters seem like if they could really live in normal read more
I found this review Helpful
Mar 9, 2008
Well first of all, if you don't like to be bewildered by a transferee student with short hair, long bangs and has a weird hobby of cutting different shapes with scissors, then don't take this!

The story begins with Urabe being introduced to Tsubaki's class. She does not attempt to be sociable with her fellow classmates, choosing to sleep at her desk during lunch, and soon earns a reputation as being strange. One day, Tsubaki wakes Urabe (who was again sleeping at her desk) late after class to tell her the building will be closing soon so she needs to go home. After she has left, read more
I found this review Helpful
Dec 31, 2014
For me this has been a long time coming, or at least it's felt that way. Like a lot of people, I only began to read the MGX manga after watching the anime; I needed more of the very sweet and honest relationship I'd become obsessed with in the day it took me to marathon the series.

I've never cried before while reading or watching anything until I read MGX. I have never been as emotionally invested as I have in a piece of media before.

I picked it up at a weird time. The second (and final) major arc had just ended, allowing me to steam read more
I found this review Helpful
Oct 14, 2014
My god! I finally got a chance to sit down and read the final chapter of this wonderful manga. I was nearly in tears as I read this I could not believe this was the end. It a nice conclusion to this but I want more, I guess I really fell in love with the characters especially Tsubaki and Urabe. The artwork was great I enjoyed how wonderfully drawn they were the color pages from time time were color just right. I really immersed myself in the story every chapter I was left wanting more and got it in the next. This was the first read more
I found this review Helpful


Manga: Sundome
I was amazed at how much the premise of these two mangas are alike. Both stories revolve around a guy who's pretty much under the complete control of a girl as far as sexual relationships go and their girl counterpart has no shame in exploiting it. Despite both being seinen, Sundome contain much more graphic, ecchi and smutty art than Mysterious Girlfriend.  
reportRecommended by VK11
Manga: Moriguchi Orito no Teiougaku
The main characters are somewhat similar. The male lead and female lead have strange connections to each other. In MGX, Tsubaki and Urabe share each other thoughts by transferring saliva to one another, which is Mikoto's "ability." In Teiougaku, Moriguchi and Harunabara share images that Harunabara sees in her thoughts, when they come into contact with each other. 
reportRecommended by insaner2play
Manga: Sakuranbo Syndrome - Cupid no Itazura II
Both of these titles have underlying supernatural circumstances that push characters to swap saliva. 
reportRecommended by radiantfire
Manga: Watashi ga Motenai no wa Dou Kangaetemo Omaera ga Warui!
Both main characters kind of look the same at a distance but the difference is that in one series the girl is ugly while in the other the girl is hot (But both characters still look cute) . Both characters are kind of weird and have a rather awkward social life.

Both series also share a similar setting and are both pretty funny and amusing because of the unexpected events that happen 
reportRecommended by kuglefang
Manga: Yamada-kun to 7-nin no Majo
A Girl and a boy share an atypical bond that is triggered by kissing/saliva. The girl also is not your typical schoolgirl, somewhat strange in their own way. 
reportRecommended by laststandb
Manga: Subete ni Iya Girl
Both are about school boy who wants to make friends with a little unusual girl. 
reportRecommended by harrypotter

Recent News

Q3 2015 Anime & Manga Licenses [Update 9/17]

In this thread, you'll find a comprehensive list of anime and manga licensed in the third quarter (Jul-Sep) of 2015. Summer anime which were licensed before the quar...read more

'Nazo no Kanojo X' Manga to End

According to a scan of this month's issue of Monthly Afternoon, manga Nazo no Kanojo X will be ending in the magazine's next issue with 92 chapters. The final chapte...read more

Recent Forum Discussion

Poll: Mysterious Girlfriend X Chapter 2 Discussion
jacobpaige - Aug 30, 2009
7 replies by SlashBriar »»
Jan 20, 9:15 PM
Does this have a happy ending?
jared_dx_58 - Jul 17, 2015
5 replies by LaceyKuroki »»
Nov 30, 2015 11:39 AM

External Links

MangaUpdates, Wikipedia