Mysterious Girlfriend X

謎の彼女X (Nazo no Kanojo X)

7.2(164,615)
MAL Score
Ranked #3635
Popularity #768
  • Romance
  • School
Episodes
13
Duration
24 min per ep
Aired
Apr 8, 2012 to Jul 1, 2012
Status
Finished Airing

Synopsis

First meetings have a way of lingering, especially when they lead somewhere unexpected. Akira Tsubaki, a boy with little experience around girls, finds his routine upended by Mikoto Urabe, a newly transferred classmate whose quiet, distant demeanor makes her hard to read.

After an unusual chain of events draws them together, Tsubaki realizes he’s fallen for Urabe, and the two begin a relationship built on a strangely intimate connection. As their days at school unfold, Urabe’s guarded nature and distinctive way of showing her feelings give their romance an air of mystery alongside its tenderness.

Otaku Consensus

Mysterious Girlfriend X earns its cult status by committing, with Ayumu Watanabe’s off-kilter direction and Hoods Entertainment’s expressive dreamscape animation, to a romance language no other school-romance anime quite uses. As an adaptation of Riichi Ueshiba’s manga, its strength is fidelity to the source’s specific strangeness rather than smoothing it into mainstream rom-com beats. The recurring criticism is legitimate: viewers expecting conventional escalation, richer side-character involvement, or a fuller payoff to its more adult implications often read the 13-episode slow burn as stalled rather than restrained.

Why You Should Watch

Watch Mysterious Girlfriend X if you want a school romance about boundaries, private rituals, and first-love embarrassment without harem padding or confession-reset comedy. It scratches a nearby itch to His and Her Circumstances in how seriously it takes teenage interiority, but its discomfort factor places it closer to the psychological unease of The Flowers of Evil, only warmer and less nihilistic. The appeal is not “will they get together?” mechanics; it is watching a relationship develop through rules that feel alien at first, then strangely consistent. Hoods Entertainment’s visual imagination comes through most clearly in the periodic dream sequences, where the show turns emotional confusion into surreal imagery. If the infamous drool motif sounds like an instant deal-breaker, it probably is; if it sounds like a test of directorial nerve, this is one of romance anime’s oddest cult pieces.

Key Characters

  • A
    Akira Tsubaki(VA: Miyu Irino)

    Akira is memorable because Miyu Irino plays him less as a generic romance lead and more as a boy constantly negotiating curiosity, shame, and sincerity in real time.

  • M
    Mikoto Urabe(VA: Ayako Yoshitani)

    Mikoto became the show’s icon because her guarded delivery, scissor-sharp presence, and refusal to explain herself make her feel like a full romantic partner rather than a wish-fulfillment mystery girl.

What Makes It Stand Out

  • 1

    Hoods Entertainment gives the series a deliberately unusual visual identity for a 2012 school romance, with the dream sequences repeatedly singled out by viewers and Blu-ray reviewers as the animation showcase.

  • 2

    The adaptation preserves Riichi Ueshiba’s central sensory motif literally instead of converting it into a safer metaphor, which is why the anime is remembered as both a sincere romance and “the spit fetish anime.”

  • 3

    Its 13-episode structure avoids the usual multi-route harem sprawl and keeps attention tightly on one developing couple, a choice that gives the romance focus but leaves some viewers wishing the supporting cast mattered more.

  • 4

    The pacing is intentionally incremental: emotional progress comes through repeated tests of trust and embarrassment rather than dramatic event escalation, producing the same quality that fans call intimate and detractors call boring.

  • 5

    Ayako Yoshitani’s restrained performance as Urabe is central to the show’s tone, making silence, flat affect, and sudden emotional precision part of the character’s appeal.

Fun Facts & Trivia

Fun fact 1
The TV anime ran for 13 episodes from April 8, 2012 to July 1, 2012, and was produced by Hoods Entertainment.
Fun fact 2
On MyAnimeList, it sits in an unusual position: a modest 7.22 score and rank around #3633, but a much higher popularity placement around #768, reflecting a show that is widely known even by people who never finished or liked it.
Fun fact 3
The original Japanese title is Nazo no Kanojo X, adapted from Riichi Ueshiba’s manga; the anime’s English title keeps the “X,” preserving the source’s deliberately cryptic branding.
Fun fact 4
Ayako Yoshitani, who voices Mikoto Urabe, is also associated with the anime’s vocal music, including theme-song performance, tying Urabe’s presence to the show’s sound identity as well as its central romance.
Fun fact 5
Fan discussion often points new viewers toward the OVA as a worthwhile companion piece, especially for those who enjoyed the TV series’ stranger, more mystery-tinged side.

Studios

  • Hoods Entertainment

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