The base game, titled , is a Japanese adult RPG by the circle "Lunarian" (ルナリアン).

While we can't reveal too much just yet, our sources suggest that the Eng Agent Sirius DLC will:

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: The DLC shifts focus to a "yuri marriage" between the hero and heroine, which is threatened by a new antagonist, Noroshi Ren.

The (specifically associated with codes RJ388166 and RJ01259073 ) has become a notable topic for fans seeking expanded content for this specialized simulation software. As a verified enhancement package, it aims to provide in-depth technical features and operational updates to the core agent system [1].

: Converts the UI, dialogue, and investigation logs into fluent English.

: Investigate a series of strange incidents involving "Poison" monsters that use pleasure brainwashing to dominate the school.

Introduces new enemy AI types, security cameras, and tactical gadgets to diversify your infiltration strategies.