Isshin's Letter is a Key Item in Sekiro: Shadows Die Twice. This lore note reveals a relationship between Isshin Ashina and Emma.
Isshin's Letter Usage
- Gives a lore insight into the relationship between Isshin Ashina and Emma.
- Can be given to Emma, Only if the player does not talk to the Tengu of Ashina before reuniting with her.
How to Find Isshin's Letter
- Found in Ashina Castle. From Upper Tower - Ashina Dojo Idol, go downstairs and left, defeat two samurai and slice the door behind them. A passage leads to 3 Tengu enemies. Defeat them and go upstairs to find the letter.
Isshin's Letter Notes & Tips
- gives the player additional insight into Isshin and Emma's connection (and Isshin's activities as the Tengu of Ashina).
- If given to Emma she instructs the player to inspect the watchtower beside where you previously fought Gyoubu Oniwa. (Where the Tengu of Ashina can be found)