How to Unlock the Shuumatsu Gaiden Hidden Achievement in Genshin Impact



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As one of the many hidden achievements in Genshin Impact, the Shuumatsu Gaiden can only be achieved and triggered when you discover something while exploring the vast world of Teyvat. For this certain achievement, no clues and navigation marks are provided to complete the missions. It will not even be listed on your quest window.

How to Unlock the Shuumatsu Gaiden Hidden Achievement in Genshin Impact

One of the things to note is that this hidden achievement utilizes the mechanic where players need to wait another real-life day to proceed to the next task. You need to complete five tasks, and only one task can be done per day. So make sure to do and complete the tasks on consecutive days not to waste time.

Day 1

To start this five-day mission series, teleport to Araumi and go to the camp indicated on the map below.

sg day1 map

The area will be lurking with Fatui Skirmishers, so be prepared to fight.

sg day1 area 1

After defeating the enemies, go to the camp and pick up the tattered notes inside.

sg day1 area 2

The writings are messed up, but Paimon can read a few lines that say “…when deciphering the slip, the secret code…” and “…the first half is ‘In the middle of a hazy night’….” Based on these, Paimon will suggest that next time you get and decipher a fortune slip from the Grand Narukami Shrine, you should try to match the secret codes.

sg day1 notes 1

Go to the Grand Narukami Shrine and take a bamboo slip or fortune slip.

sg day1 slip 1

After drawing a fortune slip, talk to Gendou Ringo, and instead of getting the slip deciphered, select the choice that says “(Hand over the fortune slip) In the middle of a hazy night.”

sg day1 slip 2

Gendou Ringo will respond with “Cloudy” and hand you a strip of paper.

Unlike the usual paper with your fortune written on it, this one-handed to you is a Strange Fortune Slip. It contains a photo of a location, information about misconduct, and a line that says, “Send in the Shuumatsu to end traitors and criminals alike.”

sg day1 strange fortune slip

Go to the location indicated on the paper, which is the cave under Inazuma City.

You will find Fireblade Mourisu Boris, a Fatui Pyro Agent with two Pyroslinger Bracers.

sg day1 enemy

Defeat these felons to complete the mission.

Day 2

To get the mission for the second day, head back to the Grand Narukami Shrine, take a fortune slip, and choose the second option when talking to Gendou Ringo instead of having the slip deciphered.

sg day2 slip 1

Paimon will notice the slight change in Gendou Ringo’s character when she does not call the fortune slip “strips of paper.” She also responded “Foggy” instead of “Cloudy.”

The Strange Fortune Slip will indicate another photo of a location and the mission details.

sg day2 strange fortune slip

Based on the photo, the designated area is the tidal flat near the Kujou Encampment. It is on the west side, just below the Teleport Waypoint.

sg day2 mission map

You have to find and defeat Makita Unio, also known as Mousey Maki.

sg day2 enemy

Day 3

For the third day, the mission is called “Birds of a Feather,” and you will have to ambush the thieves during their meeting.

sg day3 strange fortune slip

The cave is beneath Inazuma City, but there is a designated hour this time. The meeting will occur “late night and end sometime before dawn.”

Before entering the cave, adjust your in-game time to somewhere between 20:00 and 24:00.

sg day3 time

Four enemies will be there, and you have to defeat them all.

sg day3 enemy

Day 4

The mission for the fourth day is titled “End of a 30-Year Cold Case: Demonbane Kin,” as indicated in the Strange Fortune Slip.

sg day4 strange fortune slip

You have to find and defeat Matsudaira Kinjirou, nicknamed “Demonbane Kin,” and his accomplices who have been spotted in the southern parts of Yashiori Island.

The exact location is near the Teleport Waypoint at the southern end of Yashiori Island.

sg day4 map 1

After teleporting, walk a little to the west, and in the cave, you will find some Nobushis.

sg day4 enemy1

Defeat them and investigate the campfire cooking pot.

sg day4 campire

Paimon will suggest following the shoreline, and you have to walk by the cliff to the west until you get to the beach where there are more Nobushis.

sg day4 map 2
sg day4 beach enemies

A little beyond that, one samurai is resting on a flat rock. That is Demonbane Kin.

sg day4 enemy 1

Defeat him to complete this day’s mission.

Day 5

When you go back to the Grand Narukami Shrine to take another mission, you will find that Gendou Ringo is nowhere to be found. However, you have to investigate a slip on the counter.

sg day5 shrine

The note, left by someone, indicates that it is the thieves’ final destination and that you have to investigate the strange occurrences there.

sg day5 note

Included in the note is a map with a marked location.

The broken bridge is a little north of the shrine, just below the mountain.

sg day5 map

You can glide down or teleport to the Court of Flowing Sand domain entrance and walk to the broken bridge.

Upon arriving at the location, you were suddenly attacked by someone, and you lost consciousness.

sg day5 attack

You will wake up in a cage inside a cave and find out that it was Gendou Ringo’s doing. She will interrogate you about your identity and how you got knowledge about the Shuumatsuban’s secret code.

sg day5 attack 2

After explaining everything, Gendou Ringo will understand, and she will also tell you that the Gendou who gave you the missions from the second day is an impostor and that she had to fake her death to avoid getting caught the Fatui spies.

sg day5 impostor reveal

Gendou Ringo will then propose that you work as an external member of the Shuumatsuban, an organization in Inazuma under the Yashiro Commission.

sg day5 offer

Agreeing will unlock the hidden achievement SHUUMATSU GAIDEN and open the cage. You will also have access to the treasures inside this cave.

sg day5 end
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