This page of our guide to Ghost of Tsushima has a walkthrough for The Terror of Otsuna quest.
How to unlock: Complete The Ghost and the Demon Sensei side quest
Where to start: Old Toyotama Hills
This mission begins with several conversations. First you have to go to Ishikawa. He's waiting on one of the farms. After that, you have to go to Ran. He will direct you to the Mongol camp.
When you get there, do what you always do - eliminate all enemies.
After defeating the opponents, look for tracks on sand. Tomoe will show up in the camp. Follow her and try to catch the woman. Remember, however, that this is not possible. Listen to a brief dialogue between the characters. After that, go back to Ishikawa. This will end the mission.
- Legend increased - smaller bonus;
- Lesser ranged charm;
- +2 Silk.