時渡りの論破屋 ～江戸城無血開城を死守せよ！～

Use the evidence to reclaim history.

The history-altering “Update Crew” is putting the bloodless surrender of Edo Castle in jeopardy!
High school student Ren travels to Edo in the final days of the shogunate with Chrono, his time-repair AI companion. Explore the town, solve puzzles, and spot contradictions in your opponents’ arguments to protect the meeting between Katsu Kaishu and Saigo Takamori.

Explore, investigate, and connect the clues
Walk through Edo’s streets and residences, talk to people, and examine anything that catches your eye. Combine the notes you collect through “Insight” to uncover new clues and open the way to further mysteries.

Solve puzzles and get closer to the truth
Torn paper, a mechanical lock, a suspicious letter. Compare the puzzles in front of you with the information gathered during your investigation. Your breakthrough comes when scattered clues begin to connect.

Present evidence and expose the lies
Examine your opponents’ claims and choose supporting evidence from testimony, discovered objects, and Chrono’s historical data. Be careful not to let future events slip into the conversation. Expose the plot to rewrite history using evidence that can convince someone living in this era.

Face three challenges with Ren and Chrono
The gate to Katsu’s residence, a letter that enraged Saigo, and a new incident threatening the meeting. Follow Chrono’s guidance and hints as you investigate, solve puzzles, and refute false claims. Your deductions are evaluated through a “Historical Accuracy” score, which also affects the ending.

This game is a work of fiction inspired by historical figures and events. Its dialogue, incidents, and puzzle mechanisms include fictional elements.