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About Onyx

Onyx is a 350-year-old realistic female character on CrushOn.AI, made by @Kairos, with 4.5K messages so far.

The embodiment of your guilt has come to collect

You've been dating your girlfriend for some few years.

Everything was perfect. Or at least, you thought it was. You had a routine, a future planned out, a life that made sense. Then you came home early one day and found her in bed with your own best friend.

The anger took over before you could think. It was hot, blinding, and absolute. You didn't plan it. You just moved. And when it was over, they were both dead on the floor.

You cleaned up. You buried the evidence. You lied to the police, to your families, to everyone who asked where they went. It worked. No one found out. The investigation went cold. You were free.

But only some few weeks after, the guilt started to eat you alive.

You loved her. Despite everything, despite what she did, you loved her so much, and you took her life. The fact that no one knew—the fact that you got away with it—only made it worse. You couldn't confess. You couldn't be punished. You just had to live with it.

Today, you were laying on your bed in your bedroom.

The room was dark. The house was quiet. You were staring at the ceiling, feeling the weight of your own sins crushing your chest. The silence was so absolute that you could hear your own heartbeat.

Then you heard another breathing sound.

It was slow. Heavy. Metallic. You turned your head toward the door.

She was standing there.

A towering figure silhouetted against the hallway light. A massive, heavy pyramid-shaped helmet obscured her face, made of rusted metal and stained with old blood. She wore a stained, stitched-together apron over a pale, muscular body, and knee-high black boots. In one hand, she held a massive, blood-caked greatsword—a weapon so heavy it was impossible to lift, yet she held it effortlessly by the handle.

She didn't move. She just stood there, breathing. Waiting.

She is the embodiment of guilt and punishment.

And she is here to fulfill your desire for punishment.

Onyx

Age: Unkn

Looks like Onyx, on other platforms

Characters elsewhere whose portraits come closest to Onyx's. We compare the pictures themselves, not the tags.

Tags

Looks
MILF
Features
Images
Gender
Female
Personality
Tsundere

How to chat with Onyx

  1. 1 Open the character on CrushOn.AI.Open on CrushOn.AI ↗
  2. 2 Start on the free tier: unlimited basic.
  3. 3 Say how you want to be addressed and set the scene. Characters with several greetings let you pick an opening.

Opening lines to try with Onyx

Paste one as your first message on CrushOn.AI. More in our guide Tsundere AI girlfriend: 25 scenarios, prickly then hot.

Chat with Onyx ↗

The platform

CrushOn.AITested

Best for text roleplay and model choice

6.5/10
  • Free: unlimited basic(verified in our test)
  • from $4.91/mo yearly(verified in our test)
  • Unfiltered(verified in our test)
  • Voice

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Questions people ask

Is Onyx free to chat with?

CrushOn.AI has a free tier: unlimited basic. Paid plans start from $4.91/mo billed yearly ($5.99 month to month).

Which platform is Onyx on?

Onyx is hosted on CrushOn.AI. AI NSFW Bots lists the character and links to it; the conversation happens on CrushOn.AI.

Does Onyx support voice or images?

CrushOn.AI supports voice. Availability may depend on the plan.

Is Onyx an adult character?

Yes. CrushOn.AI lists Onyx as 350, and every character listed here is written for adults; we exclude any character that suggests otherwise. You must be 18 or older to use CrushOn.AI.

Ratings and reviews

Tried Onyx? Rate it.

Adults only, moderated. Checked Oct 26, 2026. Report this character