Obtained: Otsuna – Ichi’s Inn
Meet Yuna at Ichi’s Inn
Head to Ichi’s Inn and talk with Yuna on the second floor.
Mount your horse
Head outside and hop on your horse.
Travel to Altan’s camp
Head northeast to find Altan’s camp near Old Clan’s Hill.
Kill the Mongols
Defeat all the enemies.
Speak with Yuna
Talk with her near the gate.
Duel Altan
Kill him.
Kill Altan’s guards
Once Altan has been defeated, kill his guards.
Speak with Ichi
Talk with Ichi who will come running up to you. This will complete the tale.