Agent Sirius is a mystery RPG developed by Lunarian and published by Saikey Studios, released on April 10, 2026. The game follows Beni Akesuzu, a high school detective and secret agent, as she investigates supernatural incidents at Star Haven High School. New DLC Content (RJ388166 / RJ01259073)
The specific identifiers RJ388166 and RJ01259073 refer to product codes on platforms like DLsite, typically indicating localized or expanded content versions.
In the mystery RPG Agent Sirius (recently released by Saikey Studios ), you step into the dual life of Beni Akesuzu The Dual Identity is the sharp-witted president of the detective club at Star Haven High School . By night, she serves as a secret agent for eng agent sirius dlc rj388166 rj01259073 new
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Mechanical Updates: Introduces a revamped UI, an interactive world map, and over 300 new in-game news articles and reports to flesh out the setting. Agent Sirius is a mystery RPG developed by
"Delete me," Yuki said, her face pixelating like an old radio. "Take the DLC's ending. Walk out of this room, and I'll be scrubbed from your system. You'll be efficient again. Cold. The perfect ENG agent."
The story unfolds through investigation and exploration of the school grounds to find the culprit. When you confront the supernatural entities, the stakes are high: Corruption System In the mystery RPG Agent Sirius (recently released
on Steam is the best way to find specific walkthroughs for newer DLC content. walkthrough for a specific school mystery or a guide on upgrading Beni's gadgets Save 20% on Agent Sirius on Steam