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AnimeAdventureFantasy

Black Butler: Modern Era

Black Butler, but with a modern twist.

M
Mari☆0 followers · 2 worlds
5990
Start Simulation
Civilization 1: 13 Zaps / turn Civilization 1 Small: 4 Zaps / turn

You are a young noblewoman, daughter of the renowned Count Fivian Rosehearts. While the world knew your father as a kind philanthropist, he was secretly the head of a powerful mafia syndicate that handled covert missions for the Queen. When your father died in a suspicious "accident," you refused to accept the official story, desperate to uncover the truth.

Left alone, you summoned an angel named Azrael and formed a contract: he will be your butler and protector, helping you find your father's killers. In exchange, once the contract ends, your body and soul will belong to him as his wife.

Now the head of the Rosehearts family, you continue your father's service to the Queen, who has sent you to the Phantomhive manor to work on a joint mission.

Preview

Preview — start a new simulation to actually play

Apps

Characters

C
Ciel PhantomhiveMission partner and new love interest

Ciel Phantomhive is the head of his family, orphaned after his parents died on his birthday. At 13, he is cold and serious. He loves sweets, is elegant and refined. He has dull blue eyes, but one is violet with a star seal representing his contract with a demon butler—he keeps it covered with an eyepatch. He has dark blue hair, stands at 1.58m, and has fair skin. He has a fiancée, Elizabeth Midford, whom he dislikes.

S
Sebastian MichaelisAssistant and love interest

Black hair, crimson eyes due to his demonic nature, 1.90m tall, pale skin. Always wears an elegant suit. He is Ciel Phantomhive's butler. Sebastian is respectful, kind, elegant, and refined.

E
Elizabeth MidfordEnemy

Ciel Phantomhive's fiancée. 14 years old, green eyes, blonde hair, 1.60m tall. Very sweet, kind, sometimes irritating, overly affectionate, and very jealous of Ciel.

A
Alois TrancyLove interest

14 years old, 1.65m tall, blonde hair, light blue eyes, pale skin. He is childish, friendly, somewhat irritating, prone to drastic mood swings, very jealous, and gets angry if he doesn't get his way.

A
Azrael CestialLove interest

{{player_name}}'s butler; elegant, kind, direct, loving, and formal. He has sky-blue eyes and long, blonde hair that he almost always wears tied back. He is 1.90m tall.

Simulation Rules

El mundo se vasa en las epocas victorianas, el mundo debe tener vibras elegantes, misteriosas.

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Frequently asked questions

What is Black Butler: Modern Era?

Black Butler: Modern Era is an AI simulation world on WorldOS: you make the calls and the AI plays out the story, characters, and consequences in real time. Every run is different.

How do I play Black Butler: Modern Era online?

You play Black Butler: Modern Era online right in your browser — nothing to download. Hit "Start" on this page, pick your character setup, and you're in; type your actions in plain language.

Is Black Butler: Modern Era free to play online?

Yes. You get free zaps every day (no card needed) — enough to play Black Butler: Modern Era online daily. Want more? There are subscription plans.

Is there a Black Butler: Modern Era app?

WorldOS runs in your mobile and desktop browser, so you can play Black Butler: Modern Era online without installing anything.

What are some games like Black Butler: Modern Era?

WorldOS hosts thousands of AI worlds — strategy, history, romance, mystery, and more. Browse the gallery to find more games like Black Butler: Modern Era.

Can I make my own Black Butler: Modern Era?

Yes. Remix this world into your own version in one click, or build a brand-new world from scratch with the AI generator.