If you’re diving into IGA and aiming to unlock The Ronin quest line and its trophy, you’ll need to tackle the “Ambush Interrupted” side quest first.
This side mission becomes available automatically during Act 3 as the main story progresses.
Start Ambush Interrupted Quest To Earn The Ronin Trophy In AC Shadows
The “Ambush Interrupted” quest in Assassin’s Creed Shadows is part of the storyline involving Ibuki, a recruitable ally.
Your journey begins in Kashiwara Village. Seek out Ibuki, a central figure in this quest. Interacting with him kicks off the mission in earnest.

Surprisingly, Ibuki already knows who you are, which sets the stage for an unexpected conversation. He’ll probe you with a series of questions about your past actions—your responses here matter, so choose wisely.
When Ibuki asks about your motivations, the best response is, “I was following orders.”
This choice resonates with Ibuki, influencing his perception of you and strengthening your alliance.
After your conversation, the situation escalates quickly. Ibuki needs your help to fend off an attack by Lord Nakatomi’s men.
Help Ibuki To Defeat The Nakatomi Men
You’ll join forces with him in a battle, facing a group of enemies determined to crush your resistance. Focus on eliminating all of Nakatomi’s men. Clear the battlefield to move the quest forward.
With the enemies defeated, Ibuki will turn to you for guidance on what to do with the captured survivors. When he asks about their fate, he responds with, “I would forgive him.”

This choice showcases mercy and aligns with Ibuki’s values, deepening your bond and setting a positive tone for the quest’s conclusion.
Finally, Ibuki will enlist your aid for one last task: ending Lord Nakatomi’s tyranny. He instructs you to meet him near Hijiyama, a location that promises a dramatic showdown.

Agree to help, and you’ll wrap up “Ambush Interrupted” on a high note. As a reward for your efforts, you will earn the Ronin Trophy..