[Analysis] High School Dirty Secrets: Trapped in an institute that hides horrors

Waking up in an empty and sinister high school, without knowing how you got there, is the perfect hook that High School Dirty Secrets uses to hook you immediately. This title, released on November 6, 2025 by Mitsuki Game Studio and JanduSoft, transforms an everyday scenario into a nightmare full of whispers and long shadows. I explored its corridors with Kasuga, the popular but now terrified protagonist, and although some technical glitches slowed the pace, her way of building suspense through gradual discoveries kept me moving forward until the final puzzle was solved.

The plot: Secrets that emerge from the shadows of the institute

Kasuga opens his eyes at his school after class, but everything is deserted and the doors are locked. With no clear memory of what happened, he begins to investigate classrooms, gyms and hallways that seem to change when you least expect it. The story focuses on unraveling why she is trapped and what her classmates are hiding, with touches of school rivalry that lead to something much darker and twisted.

During my game, I appreciated how secrets are revealed in measured doses: scribbled notes, messages on whiteboards or distorted recordings that paint a picture of jealousy and revenge. The institute has several areas that feel alive and steeped in history. The final twists, with options that lead to different outcomes, reward careful exploration and leave a bitter aftertaste that invites reflection.

Gameplay: Puzzles that force you to observe every detail

The game alternates between first-person perspective for intimate moments of tension and third-person perspective for a broader view of the environment, and you can change the perspective freely, a detail that facilitates both immersion and puzzle-solving. You progress by collecting key items, combining them logically, and solving puzzles that range from opening coded locks to manipulating switches to restore light to dark areas.

I liked that the puzzles feel connected to the place: a locker reveals personal clues, or an old-fashioned projector projects hidden messages. There is no direct combat, but the constant threat keeps you on alert, forcing you to move with stealth.

The duration is around 4-6 hours, with some ramifications that encourage you to replay to see all the endings. Some interaction detectors fail and force unnecessary turns, but when it flows, the feeling of progress is addictive.

Graphics and atmosphere: An anime high school that goes from innocent to chilling

The visual style relies on 3D graphics with an anime aesthetic, where characters with expressive eyes and detailed uniforms contrast with environments that become increasingly oppressive. Hallways lit by flickering fluorescent lights, dust-covered classrooms, and endlessly echoing gymnasiums create an atmosphere that evolves from the familiar to the disturbing.

The atmosphere builds gradually: loneliness weighs heavily, subtle changes in lighting create paranoia, and each new area reveals layers of decay. Technically it runs smoothly at medium settings, although small visual bugs persist such as objects that pass through or textures that take a long time to load. Still, the contrast between the beauty of the character designs and the ambient horror works very well to maintain tension. Perhaps what can be criticized may be that the textures in the settings are too simple.

Personal opinion: A school horror that entertains and disturbs in equal parts

High School Dirty Secrets turns an everyday environment into a source of concern, with a charismatic protagonist who makes you empathize from the beginning. The puzzles flow well, the progression is engaging and the multiple endings add value. As a fan of anime and games with supernatural touches, I found here a fresh proposal that avoids excessive clichés.

Weaknesses appear in object detection, which sometimes frustrates, and in pacing that drags in certain search sections. Nothing serious that breaks the experience, but details to polish. In general, it leaves a mark for its ability to generate suspense without the need for cheap scares, focusing on psychology and kept secrets.

Conclusion: Is it worth entering these haunted halls?

High School Dirty Secrets offers a quick but intense escape for those who enjoy solving mysteries in closed environments full of personality. If you are attracted to high school stories with double bottoms or you are simply looking for a light horror with puzzles, this title more than delivers. Add it to your list and tell me in comments which ending you got!