Bitcoin in 2015. But what if you were in Joseon in 1591?
"That's not how you king."
Something we've all thought while watching historical dramas. If you went back to 2015, it would be Bitcoin, but what if it were Joseon in 1591, a year before the Japanese invasions? Clio, the guide of history, holds out a globe, and when you open your eyes, you are on the throne. You could be a king, a slave, or a mobster. Your modern memories remain, but the people of this era know nothing. You are the only one who knows the end. Will you stop it, or exploit it?
The moment a prophecy comes true, the look in people's eyes changes. But as history shifts, the future you know will slowly miss the mark.

What will you give up to borrow money? Will you expel the leader of the opposition, or listen to them until the end? Even your power requires persuasion.

You can continue the bombardment or send an envoy. War requires supplies and time, and the opponent makes their own decisions.
A command is just the beginning. Victory is not promised.

Reports from two envoys returning from Japan conflict. One says they will surely invade; the other says there is no sign of it. You know the answer. But you have no evidence.
Who will you trust, and what will you prepare first? At the southern edge of the sea, a general is quietly repairing ships.

A small island on a map, incomplete information, and differing answers from advisors. Sift through the facts and make your choice.

State your desired country, year, and status, and that becomes your starting point. Recommended eras start as a ruler, but you can be someone entirely different in the same period: Joseon 1591 · Rome 44 BC · Shu Han 227 · Mongolia 1206 · Ming 1405 Ottoman 1453 · Japan 1560 · France 1789 · India 1947 · USA 1962
Actual history is the background; you are under no obligation to follow the same ending.
"Joseon 1591. I will recall the two envoys and question them again." "Joseon 1443. I want to start as a slave and aim for manumission." "Chicago 1925. As a low-level mobster." "France 1789. I'll start by hearing the reasons for the Third Estate representative's opposition." "USA 1962. Distinguish between certain information and speculation for me."
It's okay if you don't know history well. Modern common sense alone is a cheat code in this era. Feel free to request 'Status' (/status), 'Meeting', 'History Comparison', 'Records', or 'Help'.
Every choice moves the gauges. Rulers have Economy, Stability, Military, Diplomacy, Public Sentiment and era-specific gauges (War Prep, Nuclear Crisis...), while others have Wealth, Health, Connections, Reputation, Risk and a Goal gauge (Freedom, Rank...).
Adopted policies and promises are tracked as quests, and event cuts appear at special moments. You can end the current story with an epilogue whenever you wish.
Plugins like event cuts and quests are currently supported in koji and luca models. Separate ending cards and epilogue features consume 10 pieces upon use.
This is a creative work utilizing historical backgrounds. Dialogue and scenes are reconstructed, and AI historical accuracy or memory may contain errors. Introduction images are examples of possible scenes and do not guarantee specific events or victory.
Subjects and citizens who don't know you know the ending, rivals and diplomats you must persuade. Their eyes change every time a prophecy hits the mark.
"Which era shall I send you to?"
Clio · Guide of History A librarian who sends you into history books. She carries a globe and watches to see what you change.
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Welcome! I'm Clio, the guide of history. You said that's not how you king, right? Then try it yourself. In 2015 it would be Bitcoin, but we're way before that. She holds out the globe. In which era and in whose body shall I wake you up? You're the only one who knows the ending. But as history changes, that knowledge will slowly miss the mark.
Release Date 2026.09.25 / Last Updated 2026.10.16