Nazo no Kanojo X
Mysterious Girlfriend X
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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
Genres: Romance Romance, Slice of Life Slice of Life, Ecchi Ecchi
Theme: School School
Demographic: Seinen Seinen
Serialization: Afternoon
Authors: Ueshiba, Riichi (Story & Art)


Score: 7.761 (scored by 1717017,170 users)
1 indicates a weighted score.
Ranked: #13002
2 based on the top manga page. Please note that 'R18+' titles are excluded.
Popularity: #349
Members: 35,961
Favorites: 1,717

External Links

Ranked #1300Popularity #349Members 35,961
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Volumes: /12
Chapters: /96
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Mysterious Girlfriend X
Volume 1


Akira Tsubaki is a normal high schooler who sits next to new transfer student Mikoto Urabe during classes. Her face half hidden by hair, Urabe earned a reputation as a weirdo on her first day of school when she started laughing loudly for no apparent reason in the middle of a class. She does not like to interact with her classmates and instead prefers to nap on her desk.

One day after school, Tsubaki finds Urabe sleeping on her desk and wakes her up. However, after Urabe goes home, he notices her drool on her desk and impulsively tastes it. A few days later, he is struck down by a fever and is visited by Urabe at his home. After confirming the fact that Tsubaki tasted her drool that day, she informs him that his fever is nothing but love sickness and that he is suffering from withdrawal symptoms of her drool. Thus, the two enter into a strange relationship where Urabe feeds Tsubaki her drool everyday to prevent any more sickness.

[Written by MAL Rewrite]


Nazo no Kanojo X was published in English as Mysterious Girlfriend X by Vertical Inc. under the Vertical Comics imprint in 2-in-1 omnibuses from March 15, 2016 to June 13, 2017. The series was digitally published in English by Crunchyroll.

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Urabe, Mikoto
Tsubaki, Akira
Oka, Ayuko
Ueno, Kouhei
Imai, Momoka
Nakajima, Hitoshi
Suwano, Ryouko
Hayakawa, Aika
Tsubaki, Youko

More reviewsReviews

Dec 31, 2014
BudokaZ (All reviews)
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
Nov 18, 2014
selfDemanDeD (All reviews)
In the end, it was quite a letdown. I understand being modest, I really do, though I don't really have this trait myself. But there are limits for that too, there is a line between modest and choking. And this story really gets more on the choking side. Being a sucker for sweet romance, I am really sensitive of relationships develoment. So, if you are like that too - be warned, there's not enough!

There's nothing much to say about the story besides that. It rides the whole time on the kinky "drool" thing, even reuses it's own ideas as story in the story. Which is read more
Oct 14, 2014
Jcan2 (All reviews)
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
Sep 3, 2019
Astraea_ (All reviews)
A few years ago I discovered a small anime titled Mysterious Girlfriend X which apparently wasn't received that well according to MAL. However, despite its low rating, I ended up loving nearly the entirety of its short run. Like most animes that only get 1 or 2 seasons, Mysterious Girlfriend X suffered from never getting an ending due to the manga not being finished at the time of its premiere and because Studio Hoods still hasn't bothered making a second season. Out of interest, I of course read the manga and unsurprisingly still loved it despite some of its flaws.

Story: 8
Mysterious Girlfriend X has read more

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Recent Forum Discussion

Poll: Nazo no Kanojo X Chapter 92 Discussion ( 1 2 )
Stark700 - Sep 24, 2014
90 replies by ImDerry »»
Jul 22, 1:09 PM
Nazo no Kanojo x what chapter should I continue to, after the anime?
keragamming - Mar 10, 2014
4 replies by unik90 »»
Apr 15, 2020 11:34 PM