There are four endings that players can achieve in Sekiro Shadows Die Twice and you will have a lot of quests to complete in order to get one of those. One particular quest that you can do is the Sekiro Surgeon Quest. This Bloody Letter quest is one of many quests that you can complete but it is a little bit confusing to do. That’s where we come in.
In this guide for Sekiro Shadows Die Twice, we are going to let you know how to complete the Sekiro Surgeon Quest. We are going to give you a step by step walkthrough of where you need to head to, who you need to talk to, and what you need to do. Without further ado, let’s jump right in and take a look at what you need to do.

For starters, if you don’t have this quest just yet, all you need to do is speak with Doujun. You’re able to speak with this NPC once you have beaten the boss Gyoubu Oniwa. You’ll want to travel to the newest Ashina Castle idol and then head to the bridge there. There will be a place you can grapple to from the bridge. This will take you to a dungeon. Follow it left and you’ll reach the NPC.
You will have two options: the Crying Man that is located at the Senpou Temple or the Samurai who is at the Ashina Reservoir, Bottomless Hole, or Mibu’s Village. Once you have decided which person, head back to Doujun and you will need to kill the Treasure Carp.
This requires the underwater breathing technique you get from killing the Corrupted Monk. Bring the eyes back to Doujun, follow the quest, and then you’ll have to kill two characters we won’t spoil. That concludes everything you need to know about the Sekiro Surgeon Quest.