Nazo no Kanojo X

Mysterious Girlfriend X

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Alternative Titles

Synonyms: MGX
Japanese: 謎の彼女X
English: Mysterious Girlfriend X
German: Mysterious Girlfriend X
Spanish: Nazo no Kanojo X: Mysterious Girlfriend X
French: Mysterious Girlfriend X
More titles


Type: TV
Episodes: 13
Status: Finished Airing
Aired: Apr 8, 2012 to Jul 1, 2012
Premiered: Spring 2012
Broadcast: Unknown
Licensors: Sentai Filmworks
Source: Manga
Genre: RomanceRomance
Theme: SchoolSchool
Demographic: SeinenSeinen
Duration: 24 min. per ep.
Rating: PG-13 - Teens 13 or older


Score: 7.231 (scored by 146913146,913 users)
1 indicates a weighted score.
Ranked: #30432
2 based on the top anime page. Please note that 'Not yet aired' and 'R18+' titles are excluded.
Popularity: #749
Members: 315,363
Favorites: 3,193

Available At


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Ranked #3043Popularity #749Members 315,363
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Episodes: /13


First encounters are always memorable because regardless of the outcome, new experiences are sure to happen. For Akira Tsubaki, a young boy who knows next to nothing about girls, and new transfer student Mikoto Urabe, a mysterious girl who wears a cold facade, their first encounter takes a turn for the romantic.

Through a series of strange events, Tsubaki suddenly falls in love with Urabe, and together they develop a curious bond. Thus begins the romance and mystery of Urabe, a girl who seems to have a unique way of expressing her emotions.

[Written by MAL Rewrite]


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Related Anime

Characters & Voice Actors

Tsubaki, Youko

Fukuen, Misato

Hayakawa, Aika

Shimamura, Yuu

Suwano, Ryouko

Fujimura, Ayumi

PE teacher

Satou, Kensuke


Eguchi, Takuya


Mima, Masafumi
Sound Director
Yamauchi, Shigeyasu
Episode Director, Storyboard


Opening Theme

Apple Music
Amazon Music
Youtube Music
"Koi no Orchestra (恋のオーケストラ)" by Ayako Yoshitani

Ending Theme

"Houkago no Yakusoku (放課後の約束)" by Ayako Yoshitani


Feb 15, 2024
Im sure this anime activated a fetish some people didn't know they had.
With all the spit swapping, finger sucking, scissors in panties, sweat liking, and lesbian undertones.

Its a story of a boy Akira Tsubaki who falls in love with a new transfer girl Mikoto Urabe after looking into her eyes.
He ends up tasting her saliva under some pretty gross circumstances. And gets hooked on it like a drug.
One can only imagine how hooked he'd get if he tasted her 🐈🤔

Akira is the average high schooler.
Urabe on the other hand is anything but normal. She's the weird mysterious girl who keeps to herself and ...
Aug 15, 2023
Mixed Feelings
I watched the entire 1 season of my mysterious girlfriend x (Nazo no Kanojo X) last week.
TLDR: quite a bit of fan service, very obvious kink/ fetish service, first romance as a teenager.

so... this anime.
When I watched the first episode, I was very taken back by what I was watching. It started off pretty tame in a highschool setting and then the main character tastes the drool left behind from a (previously) sleeping transfer student.

Don't worry, I won't spoil it all

I don't know all the ins and outs of anime and lingo, so please forgive me.

Now this show like many other animes has fan ...
Dec 26, 2023
I’ve said before that it’s difficult to appreciate content that is evidently designed to pander to a fetish you don’t have. That being said, the context in which I’ve previously made that point is my essay about The Caretaker of Sunahara-sou, which taps into a fairly common fetish. Insofar as that show was concerned, even if you didn’t have an outright MILF fetish, as long as you were a heterosexual male (or homosexual female, I suppose), I submit that you would still get a good to fair amount of, uh, satisfaction from it. The same cannot be said about MGFX, however, for we are talking ...

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