Nazo no Kanojo X
Mysterious Girlfriend X
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Nazo no Kanojo X

Alternative Titles

Japanese: 謎の彼女X
English: Mysterious Girlfriend X
More titles


Type: Manga
Volumes: 12
Chapters: 96
Status: Finished
Published: Aug 25, 2004 to Sep 25, 2014
Genres: Romance Romance, Ecchi Ecchi
Theme: School School
Demographic: Seinen Seinen
Serialization: Afternoon
Authors: Ueshiba, Riichi (Story & Art)


Score: 7.761 (scored by 2093320,933 users)
1 indicates a weighted score.
Ranked: #14512
2 based on the top manga page. Please note that 'R18+' titles are excluded.
Popularity: #379
Members: 45,001
Favorites: 2,063


Ranked #1451Popularity #379Members 45,001
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Volumes: /12
Chapters: /96
Available on Manga Store
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.


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


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 ...
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 ...
Nov 18, 2014
Mixed Feelings
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 ...

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Recent Forum Discussion

Nazo no Kanojo x what chapter should I continue to, after the anime?
keragamming - Mar 10, 2014
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Mysterious Girlfriend X and One Punch Man?
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