I’ve mentioned in past updates that I became seriously ill in 2025 after a trip, the sickest I’ve ever been. I’ll spare the details, but it was a frightening experience. Aside from a few work trips, I hadn’t flown for leisure in over a year, which is unusual for me since I typically travel often.
A little over a year later, I finally broke that streak with a vacation far from home. That meant a long flight, and with it, a chance to catch up on some movies through the in-flight entertainment. Flying with United, though I’m not sure how other airlines compare, there were a few Toho titles available. With three to pick from, I settled on Trillion Game the Movie (2025) and the subject of today’s review: the 2025 live-action adaptation of A Girl & Her Guard Dog.
Sadly, for this adaptation of the original manga, which also became an animated TV show, the live action film never quite settles on what it wants to be. At times it leans into absurd comedy, at others it pushes toward romance and occasionally it veers into crime drama. The result is an uneven but intermittently entertaining experience. It has flashes of charm, but struggles to tie its ideas together into something cohesive.
In terms of the story, young Isaku Senagaki lost her parents in a traffic accident at the age of five and was subsequently raised by her grandfather, the head of the Senagaki yakuza clan. During that time, she was watched over by Keiya Uto, the clan’s second-in-command. Now attending Otowa High School, located about an hour from their shared home, Isaku hopes to distance herself from her yakuza upbringing and live a normal life. Keiya, however, views this as a major risk. Despite being 26 years old, he decides to enroll at the same school to keep an eye on her. His presence quickly undermines her plans, much to her frustration, as she simply wants to make friends and experience falling in love like any ordinary girl.
On the surface level, the story is pretty interesting and is ripe for comedic elements, which are often its strongest asset. There’s a clear awareness of the inherent absurdity in its premise of a 20-something man enrolling in high school and the film does find genuine humor in that setup. Much of this works thanks to the dynamic between Isaku and her overbearing protector, Keiya, especially when she’s trying (and often failing) to carve out a normal teenage life while he hovers nearby. These moments capture the film at its best: light, awkward and self-aware.
That dynamic is supported well by the performances. Riko Fukumoto plays Isaku with a demure, slightly exaggerated style that fits the tone, even if it occasionally tips into overacting… most notably in a particularly rough scene during the Romeo and Juliet rehearsal. In contrast, Jessie Lewis (or technically the artist formerly known as Jessie Lewis as he tends to go by just “Jessie” these days) is a standout as Keiya. He balances the character’s dual nature effectively, shifting between calm, mysterious, charming and genuinely intimidating with little effort. In fact, there are moments where that darker edge comes through in unsettling ways, such as a violent outburst at a karaoke bar, that add a layer of unpredictability to his character.
Now the premise itself has potential. Unfortunately, the film shifts focus too quickly. Roughly a third of the way in, the story pivots heavily toward romance, and not always to its benefit. While the chemistry between the leads is serviceable, the relationship develops too abruptly, with key emotional beats feeling rushed. What could have been a slow-burn tension or at least “will they/won’t they” dynamic instead becomes a straightforward “when will they” scenario. More problematic is the uneasy undertone beneath the romance. Keiya has known and protected Isaku since she was a child, and the film occasionally highlights this in ways that make the relationship feel more uncomfortable than intended. The clearest example comes when Keiya remarks that he’ll be sad when she no longer needs him, likening it to how a parent might feel… an observation that only underscores how awkward their dynamic is. While the film sometimes plays this for laughs, the humor doesn’t fully offset the lingering sense of discomfort.
The film also struggles with structure and pacing. Conflicts are introduced and resolved rapidly, often without enough buildup to feel impactful. Mikio, the primary antagonist, enters the story as a comedic nuisance before abruptly escalating into a more serious threat, including a sudden kidnapping subplot that feels largely unearned. Similarly, supporting characters, such as Kaori whose sole purpose is to be spotted making advances toward Keiya, are introduced with potential but ultimately serve little purpose beyond briefly stirring tension before being quickly resolved. Character development is also lacking, with Isaku’s journey feeling largely static other than falling in love like she wanted to and Keiya remaining somewhat emotionally opaque despite minor growth.
Shifting gears, from a musical standpoint the film is solid but unremarkable. The score by Izumi Mori is memorable in places, particularly its piano-driven pieces, though it can feel tonally inconsistent. Some tracks are what I would describe as complex or at least those you’d expect to hear from a fully orchestrated soundtrack, while others feel simplistic or oddly reminiscent of video game music, in particular the sports related music stands out for that. This ends up creating a somewhat disjointed musical feeling during the film, although I would be curious how the score would fare as a stand alone experience, as someone who loves soundtracks.
Ultimately, A Girl & Her Guard Dog is a film of missed opportunities. Its strongest material lies in its comedic exploration of Isaku’s attempt to live a normal life under extraordinary circumstances, but that thread is gradually overshadowed by a romance that feels both rushed and questionable. There’s still enjoyment to be found, particularly in the humor and the performances of the leads, but the film’s uneven tone and scattered storytelling keep it from reaching its full potential. With a tighter focus and a more gradual approach to its central relationship, it could have been far more engaging. As it stands, it’s a mixed effort: not bad, but not especially memorable either. That said, it does have its moments. I found myself laughing more than once, probably to the confusion of those around me on the plane. All things considered, it’s a perfectly fine way to pass the time, especially if you’re open to a light young adult romance.
