indiegame.fan
Hell's 8th Avenue: Miori's Mysterious Notebook header art

Hell's 8th Avenue: Miori's Mysterious Notebook

In this adventure game, play as Miori, a young detective tasked with finding a missing person and purifying the ominous 'Illusory 8th Street.' Challenge your dexterity with fun Quick Time Events and push forward... or get punished for being too slow.

Steam Page
Release
August 22, 2025
345 days ago
Steam Reviews
Mostly Positive62 reviews75.8%

Does this feel indie?

Vote based on whether this game feels indie to you. You can change your vote at any time. Results earn an IGF score after 10 accepted votes.
No votes yet
Vote on More Games
Game contextLatest: IGF Team
ContextThe evidence factors used to assess whether this game belongs on IndieGame.Fan.Status
Notes
Latest Contributor: IGF TeamEdit notes
Updated: Jul 13, 2026Developer scaleThe operating scale of the game's developer.
Updated: Jul 13, 2026Publisher scaleThe operating scale of the game's publisher.
The separate publisher has a broad catalog or developer network in the local database.
Search Google: Is Hell's 8th Avenue: Miori's Mysterious Notebook self-published or published by Saikey Studios?Publisher statusHow the game's publishing relationship is classified.
Search Google: How is Hell's 8th Avenue: Miori's Mysterious Notebook and Saikey Studios funded?FundingThe known source of funding behind the game.
Search Google: Who controls the creative direction and IP for Hell's 8th Avenue: Miori's Mysterious Notebook and Magical Ponpon?Creative controlWho appears to retain creative control of the game.
Updated: Jul 13, 2026Release statusWhether and how the game has been released.
The game was released through a separate publisher.

Media

7 items

About the Game

Miori Shihoin, a female detective specializing in investigating anomalies, received a missing persons request one day. Apparently, the individual had disappeared in what is known as 'Illusory 8th Street.'

When Miori arrives at the entrance herself, she discovers that it is a cursed place that traps those with spiritual powers in an endless loop. To break the loop, she must reach 8th Street by pushing forward.

How long will it take her to escape Illusory 8th Street? Can she make it out without being broken herself?

You play as Miori Shihoin, a detective stuck navigating the cursed streets. To progress, use your observational skills to detect anomalies - if one is present, pass under the overpass; if not, continue forward. Each mistake sends Miori back to the start. To escape, you must make all the right choices in a row.

This game tests your attention to detail with anomalies ranging from the obvious to the obscure. Stay vigilant, or expect to get punished for your mistakes!

Quick Time Events

A fun QTE minigame with beautifully animated scenes is in this game! Dispel each anomaly you find with a QTE (which can be adjusted or turned off if you don't feel like they are your style). With each QTE failure, Miori becomes more and more restrained.

Time Attack

Challenge yourself to see how fast you can complete "Purification Mode"! Can you find all the anomalies before time runs out?

Auto-Save

The game will save your current progress automatically, so you don’t have to worry if you accidentally quit without saving.