Location Abandoned Dungeon

Doujun is an NPC in Sekiro: Shadows Die Twice. He is a secretive, no-nonsense physician in the service of a mysterious man named Dosaku, who has tasked Doujun with delivering him a tough, strong warrior for some nefarious purpose. 

Doujun Information

  • Location: Doujun can be found in the Abandoned Dungeon, up from the Underground Waterway Sculptor's Idol.

  • Progression: Luring "1 tough man" and then giving the Red Carp Eyes to Doujun will see him move from his place in the Abandoned Dungeon to an island near the Underground Waterway Sculptor's Idol where he can be fought alongside whoever was lured. Doujun will not move unless you go through with his questline, otherwise.

  • Combat: Players may kill Doujun before finishing his quest, but it is not recommended as doing so will result in permanent failure of his questline. The end of his questline also culminates in a confrontation between the player and Doujun where you must kill him.

  • Rewards:
    • The player may lure either Jinzaemon Kumano or Kotaro to Doujun via dialogue choices presented during their own personal quests in order to receive 3 x Lump of Fat Wax. (See the appropriate NPC pages for details.)

    • Finishing Doujun's questline by confronting him and whomever he has experimented on will result in the player being rewarded with an Academic's Red Lump and a special Red Lump.

    • Killing Doujun at any point before the confrontation at the end of his quest grants the player  31 XP.

Associated Quests

  • When you meet him, he will ask if you want to help him with his research. Answering yes will give you the item Surgeon's Bloody Letter.

  • With the letter in your inventory, you can now choose to lure either Jinzaemon Kumano or Kotaro to the Abandoned Dungeon via:

    • Encountering Jinzaemon at any point in his journey before he reaches Mibu Village, then selecting the dialogue option "Lure to the Abandoned Dungeon."

    • Finding, and then giving the Red and White Pinwheel to Kotaro, insisting he take it, and then selecting the dialogue option "Lure to the Abandoned Dungeon,". (Attention: Doing this will close out all other possible quests related to Kotaro, along with their associated rewards.)

  • Sending either Jinzaemon or Kotaro to Doujun will reward 3 x Lump of Fat Wax when you return to the Abandoned Dungeon and speak with him. Returning after leaving the area (just resting at an idol WILL NOT work) will open up an Eavesdropping opportunity; here, you will hear both Doujun and Dosaku discussing the use of certain waters they've found as part of their experiments on the strong warrior you've brought them. With the Mibu Breathing Technique you can gain access to the barred room by diving through the water near the Underground Water Idol. You can see him "talking" to Dosaku, but asks you to leave if you talk to him.

  • Return to Doujun after completing the Ashina Depths to find him crying near his cell. He will give you the item Surgeon's Stained Letter, and then direct you to read it for further instructions.

  • Next, go to Mibu Village and, after obtaining Mibu Breathing Technique, dive and kill the Red-Eyed Treasure Carp in the lake near the entrance. It will give you the item Red Carp Eyes, which you then need to bring them back to Doujun. After giving him the eyes, rest and head back up for another eavesdrop opportunity.

  • If Doujun continues to cry about his master and does not provide an eavesdrop opportunity, Doujun may have dragonrot and will need to be cured before advancing the quest.
  • Rest again and head toward the Underground Waterway Sculptor's Idol. Continue down the waterway to the small island to find a red-eyed Jinzaemon/Kotaro. It is recommended that you engage him now, otherwise you will have to contend with Doujun as well. Afterwards, dive under the water and head towards the cage surrounded by loot, near the cage is a small cave. Go through and grapple your way up; you'll reach Doujun's room and find him there. Talk to him, grab some items, then open the nearby gate. Rest. 
  • Now, from the Underground Waterway Sculptor's Idol, drop in the water and swim towards Senpou (away from the Dungeon). Both Doujun and whomever you initially sent to him will await you on the island to your left. They will both have red eyes and be incredibly hostile; kill them for your final rewards.

  • In some cases when sending Jinzaemon Kumano (needs testing) to Doujun, only he will appear on the island after resting, while Doujun will remain in his room crying about his master. He will appear on the island after resting again. That makes the fight much easier. In order to make sure you do not have to fight both at the same time, don't open the door to Doujun's cell until after defeating Jinzaemon/Kotaro on the island. (Needs verification) This can also happen even if the cell door was opened right after receiving the Surgeon's Stained Letter.

The Fight

Having both Suppress Presence learned along with a Gachiin's Sugar in your inventory can make initiating the fight easier, as both Doujun and whomever he brings along can be Deathblowed from the back before becoming aware of you. Swim from the idol and climb up the wall, where you can use the Sugar, then go out and back-stab the one closest to you first. Both enemies are also susceptible to the Puppeteer Ninjutsu; though it is recommended you use it on Doujun's experimental "friend" first, as it will automatically kill them afterwards, and Doujun is the lesser threat of the two.

As "Red Eye" enemies, they are weak to fire and will both take increased Posture damage and get the Burn status fairly easily when attacked with it. Opening Suzaku's Lotus Umbrella, using the Flame VentLeaping Flame, or throwing down some Shinobi Firecrackers during the fight will also have the added bonus of making both of them cower back for a few seconds, allowing you some easy hits. (Additionally, if you choose to send Kotaro over Jinzaemon, this fight can be trivialized by using the Divine Abduction prosthetic on Kotaro, as it will kill him instantly.)


  • Example Dialogue Lines
  • Quest Progression optional dialogue

Notes & Trivia

  • Voiced by: ???

  • "Doujun," and "Dousaku," are sometimes spelled differently in-game (see the description of Academics' Red Lump), likely for ease of pronunciation by players of the English version. When unfamiliar with Japanese pronunciation and transcription, the spelling Dojun and Dosaku are more accurate representations of how to pronounce those names in English.

  • Doujun wears the same outfit as the Seeker (Psychic), except it's colored white, implying that he used to be a monk from Senpou Temple.
  • Resting and returning to the area where Doujun died will reveal his corpse without his mask. His character model (and fighting style) is that of a bare-fisted monk from Senpou Temple.

  • Dialogue from Emma reveals that both she and Doujun were students of Dogen, a master physician who is mentioned several times by different characters and items despite never being seen. Doujun, however, was first a disciple of Dosaku, another mysterious physician—and apparent rival of Dogen—who is also never seen, but seems to have lost many of his students/disciples to Dogen due to the growing severity and heretical nature of his research.

  • The descriptions of the Academic's Red Lump and Rot Essence: Surgeons reveals that Doujun and Dosaku are, in fact, one and the same person.

  • Lore Theory: It is highly probable that the Test Subjects found around the area where Doujun is first encountered are the failed results of his grisly experiments.

  • Lore Theory: As an apparent monk—or ex-Monk—of Senpou Temple, it is likely that Doujun's research has to do with the prolonging of life and/or pursuit of immortality through unnatural means. How his work, the work of the Temple, and the events set in motion by the Head Priest of Mibu Village—where water from the Fountainhead Palace has been used to corrupt the villagers into zombie-like monsters—are all related, however, is still a mystery.

    • That said, there is a clear connection between the consumption of the never-withering flesh of Red Carp Eyes and Doujun's research with the 'Red Lumps'. The item descriptions of both items and two quests related to Doujun make it clear that "Red Eyes," as a phenomenon come from those "unable to achieve their desires," which we see firsthand through what happens to either of the Pot Nobles who are pursuing the immortality of the Great Colored Carp. The outcome of Doujun's quest, however, proves that transforming into Red-Eyed Carp does not make someone immortal; only their eyes become so, and that consuming those eyes is a failed attempt to grasp at immortality.

    • It's worth noting that the mini-boss Ujinari Mizuo also has red eyes, and mentions borrowing something from Lord Isshin in order to aid the Ashina clan in battle. This occuring, though, makes it unclear if "Red Eyes," can be gained only through consumption of the eyes belonging to a Red-Eyed Carp (Red Lumps) or if anyone who is unable to achieve their desires is eventually cursed with Red Eyes.

    • Furthermore: links can be drawn between the Chained Ogres and Doujun, as the former are described as being sent to dungeons and forgotten until the start of the conflict between the Ashina Clan and the Interior Ministry, which seems to indicate that Doujun's research and the consumption of Red Lumps is solely responsible for the Red Eyes.

  • The description of the Academic's Red Lump implies that Dousaku and Doujun are split personalities of the same individual; Doujun was a "student" who "looked within" for his "ideal self", and Dousaku, his "master", was what he found.  This is corroborated by the fact that we never see Dousaku anywhere in game, and in multiple occasions during his quest line where Doujun is supposedly speaking with his master Dousaku, he is alone and ostensibly talking to himself.  An alternate interpretation is that while Dousaku was once alive, he died and his insane student adopted him as a split personality to continue his research.
  • You can enter Doujun's "lab" in the Abandoned Dungeon without having killed Doujun or completed his quest if you have the Mibu Breathing Technique skill.  There is an underwater tunnel in the river nearby, which allows you access to the lab should you follow it.  Doujun will chide you upon you entering, saying it's improper for you to be there, but nothing else happens.

  • In the end, Doujun develops red eyes. Those with red eyes are considered dangerous and are filled a with rage that is difficult to control through the power of man alone. They do, however, fear the flame above all else. This loathing of flames is shared by the undead inhabitants of Mibu Village.
  • Red Eyed Carp are considered incomplete creatures, but their eyes are said to be everlasting.
  • The Holy Chapter: Infested describes the undying as those "blessed by the worm".

    • Anonymous

      13 May 2019 11:05  

      This is very strange, because after finishing this quest I got the “Master & Pupil Red Bead” instead of “Academic’s Red Lump”. Same item, but different name and description.

      • Anonymous

        08 May 2019 02:45  

        The “Academic Red Lump” seems like a pretty direct reference to the Philosopher’s Stone. Makes sense when you consider that Doujun is potentially a Senpou monk looking for immortality.

        • Anonymous

          02 May 2019 00:17  

          I gave Doujun the red eyes, rested once, went back and I went directly from talking to Doujun again to the island as Kotaro had disappeared and he was already on the island red eyed, without resting again after Kotaro disappeared but while Doujun still had lines to run out from what I've read it seems like it is possible to run out Doujun's lines early if you don't delay this quest and that's possibly what makes the difference between being able to fight 1v1 twice instead of 2v1 once

          • Anonymous

            28 Apr 2019 23:55  

            Reminds me of the doctor in blade of the immortal that experiments on Manji to unlock the secret to his immortality

            • Anonymous

              24 Apr 2019 15:28  

              I discover some adds for the wiki page: - Associated Quests {...} "It will give you the item Red Carp Eyes, which you then need to bring them back to Doujun. After giving him the eyes," he will give you [2 x Lump of Grave Wax]. "Rest and head back up for another eavesdrop opportunity." {...} */ I tested the last parragraf of Associated Quest: (TESTED ^^) When sending Jinzaemon Kumano to Doujun, after giving him the Red Carp Eyes, (In the test, just here, i dived the river, take the items and open the door of the cell of Doujun, I speaked with Jinzaemon Kumano but he only said ) and resting one time, Jinzaemon Kumano will appear alone (with the dead corpses of the previous NPCs) on the island with his new red eyes, while Doujun will remain in his room crying about his master. Doujun will appear on the island after resting again. That makes the fight much easier, but you can rest again and fight both, Jinzaemon Kumano and Doujun for a hard experience. I didn't test the Kotaro version (The shop appears to be pretty useful). 100% Tested

              • Anonymous

                21 Apr 2019 17:02  

                I opened the door to Jinzaemon's cage before getting the carp eyes, even then Doujun only moved to the small island after I had dealth with Jinzaemon

                • 19 Apr 2019 03:56  

                  This is only quest that unable to finish if you choose not to do anything with NPC you supposed to lure and send them to Doujun. Maybe DLC will give more 3rd person option to send someone to Doujun.

                  • Anonymous

                    19 Apr 2019 01:13  

                    So it's basically a quest you have to do at the expense of other quests and the reward for doing so is... nothing? (except lore info)

                    • 15 Apr 2019 09:45  

                      I'd like to add that when sending Jinzaemon Kumano to Doujun, his unconcious body can be seen behind him in the locked chamber, not only can this quest line be sped up by resting at an idol and talking to doujun again repeatedly, at one point Jinzaemon Kumano's body will change into a lootsack. when this happens the voice/lines of the merchant at the start of the abandoned dungeon will change. I believe the merchants new dialogue also sheds some light as to why phantom enemies start randomly appearing everywhere in the game, as this is mostlikely a curse by Jinzaemon Kumano.

                      • Anonymous

                        10 Apr 2019 22:05  

                        You can sneak kill Doujun if you use Gachiin's Sugar before swimming over. There was no other enemies in sight.

                        • Anonymous

                          10 Apr 2019 02:03  

                          ''In some cases when sending Jinzaemon Kumano (needs testing) to Doujun, only he will appear on the island after resting, while Doujun will remain in his room crying about his master. He will appear on the island after resting again. That makes the fight much easier. In order to make sure you do not have to fight both at the same time, don't open the door to Doujun's cell until after defeating Jinzaemon/Kotaro on the island. (Needs verification) This can also happen even if the cell door was opened right after receiving the Surgeon's Stained Letter.'' I can confirm this happened to me in my playthrough, maybe because i found the secret passage before conversing with doujun and accepting the red eyes quest? anyways i found the samurai without doujun in the lake .

                          • Anonymous

                            08 Apr 2019 23:55  

                            The way you fight them one on one is by getting Doujun to have Dragonrot before disappearing. He will be stuck on the ground until cured. This allows you to do the fight one at a time.

                            • Anonymous

                              08 Apr 2019 17:21  

                              This dude looks like a reference to Shiro from assassination classroom. Seeing as they wear similar white robes and they both are doctors studying human modification to enhance power

                              • Anonymous

                                05 Apr 2019 03:23  

                                Fighting both of them at the same time with demon bell isn't fun. No space and dumb grab attack from Dojun.

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