The narrative follows a classic "zero-to-hero" trope with a dark, mature twist. Key features include:
The game is primarily developed by HEXATAIL and is available on platforms like Itch.io. While many versions are free to download, early access to "CG UPD" and bonus content is often reserved for patrons or supporters. Adult Visual Novel / Mystery Platform PC, Android (APK) Latest Version v0.26.x (as of early 2026) Primary Goal agent 17 cg upd
: Quests involving characters like the "Elf," Sakura, and various school staff. The narrative follows a classic "zero-to-hero" trope with
: These recent iterations have added a substantial amount of content, including: Adult Visual Novel / Mystery Platform PC, Android
is an adult choice-based story game that blends elements of mystery, visual novel storytelling, and stat-building. Players take on the role of a seemingly ordinary student whose life is transformed after discovering a mysterious phone. This device connects them to a secret operative—the eponymous Agent 17—who carries out tasks ranging from schoolyard revenge to complex social manipulations.
Uncover mysteries using the Agent while managing school life
: Integration of various interactive elements to break up the visual novel format.