Screenshots
背徳シレネ｜Immoral Cyrene
CHARON, STUDIO CHARON · Published by CHARON · Official site ↗
Content notice: ・This work is intended for adults. -Contains many scenes where characters engage in sexual acts. Because this is a novel adventure that you click to read, you can watch scenes of adult content many times as the game progresses.
Last updated 2 Oct 2026
Do not step into this story with pure love. When you pursue her secret that should never be touched, you are thrust into a dark abyss...
Adventure, Indie · More free games
Immerse yourself in CHARON’s indie adventure, where stepping into a tale of forbidden love means navigating through treacherous secrets and shadowy corridors.
About this game
All for the sake of revenge.
Immoral Sirene - The Abyss You Don't Know
It is an adult horror adventure game in the form of a novel.
Do not step into this story with pure love in your heart.
When you pursue her secret, which you must never touch, you will be plunged into a dark abyss...
*Game Outline
This is for those of you who have been dragging your lost love around forever,
This is a visual novel game about love, revenge, dependence, and sin.
This is a cruel story that reveals your sins.
*Performances
CV]
Nadeshiko Shirou: Asaki Shiki
Sirene: Maruru
Theme Song
Asaki Shiki “Follow me to the bottom of the abyss
Translated with (free version)
System Requirements
Will my PC run this? →Minimum
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- Processor:
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Recommended
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Supported Languages
*languages with full audio support
