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The Coppermind has spoilers for all of Brandon's published works, now including The Frugal Wizard's Handbook for Surviving Medieval England and Yumi and the Nightmare Painter (Secret Projects Two and Three). Information about books that have not yet been released, like the other secret novels releasing in 2023 and Stormlight 5, is allowed only on meta-pages for the books themselves. For more details, see our spoiler policy. To view an earlier version of the wiki without spoilers for a book, go to the Time Machine!

Died [1]
Abilities Nightmare
Profession Scholar
Groups Institute of Mechanical Solutions
Nationality Torish
World Komashi
Universe Cosmere
Featured In Yumi and the Nightmare Painter
This page or section contains spoilers for Yumi and the Nightmare Painter!
This information has the ability to potentially ruin elements of the plot for the reader. Proceed with caution if you have not read this book.

Sunjun is one of the Torish scholars from the Institute of Mechanical Solutions who is involved in the creation of the father machine and who is later sent by the machine to prevent Yumi from escaping her prison.[2][3]

Appearance and Personality[edit]

Like other Torish scholars, he has a bearded chin and mustache.[4][3] He wears white clothing with a black, winged tanggeon.[4]

Sunjun is the most engineering-minded among his colleagues, preferring to be hands-on with their machinery and equipment. He is also the most observant, noticing Yumi's presence when their prototype machine is primed.[3]


Prior to his death, Sunjun worked with other scholars to develop and activate the father machine. His soul was kept in reserve by the machine upon its activation, for the purpose of its self-defense, though he was still turned into a nightmare. When Yumi's mind became resistant to the machine's tampering, Sunjun was one of the four scholars sent to Gongsha Town to investigate, under the leadership of Gyundok.[5]

Their prototype machine did not work upon arrival on Gonghsa, and Sunjun got to work trying to discover why. After a few days he determined the issue was with their power source. Gyundok ordered Sunjun to prime the machine, but Sunjun backed away and refused outright to do this. Ultimately the fourth Torish scholar offered to prime it, prompting Sunun to back up even further. When the machine activated, Sunjun was carefully watching, and he realized that it was charged from an additional source. As the other celebrated, Sunjun announced that a spirit was present, then withdrew a detection device, plugged it into the machine, and used it to locate Yumi until she was able to escape.[3]

When Nikaro and Yumi approached the scholars to destroy the prototype machine, Gyundok called to Sunjun that it was time for a confrontation. Sunjun activated the boxy device that was subsequently used to sever the Connection between Yumi and Painter.[6]

Sunjun remained with the other scholars after Yumi and Nikaro were separated, working to resolve the issues in Gongsha Town and contain Yumi.[7] When Yumi escaped, he chased her with the others to Torio City, where Yumi's dominating will forced him to stand down.[2][5]


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