Erin Wong, also known as Nijuuni, is an artist on who has drawn fanart of Sjin. One of the most popular being her art of Sjin with Rapunzel, for his birthday. Nijuuni has also done various other artwork for Sjin.
It was confirmed in July 2014 that Nijuuni and Sjin are dating.
In Sjin and Duncan's Minecraft series, Magic Police, Nijuuni had settled on SipsCo. land when she was found by the Magic Police, who promptly invaded her tower, causing her great discomfort. Skeptical and confused by their "warrant," Nijuuni tried to convince them to leave, but Sjin and Duncan found magic related items in her tower, and since she had had no license, they asked her to display magic. Nijuuni told the boys she was a worthy wizard, but in reality, she was just a squib.
After finding out the mud on the island was in fact sewage, Nijuuni joins the Magic Police briefly to investigate where the sewage is coming from. Following the pipes reveals a sewage pump facility owned by SipsCo.. The Magic Police then force Nijuuni to activate the self-destruct bomb, as she's the squib, and they "want to see a fireworks show," much to her further discomfort. Detonating the bomb kills all three of them, and destroys the surrounding area heavily. Nijuuni does not appear afterwards. According to Duncan, "squibs don't respawn."
Nijuuni, in the series Time Cops, also voices the knowledgeable A.I called _SQUIB_.
- Nijuuni has a degree in Psychology and English
- Nijuuni's favorite visual artists are M.C. Escher, Alphonse Mucha, Tetsuya Nomura, Kim Hyung-Tae, Hayao Miyazaki, and Kaoru Yukifuna
- Nijuuni's favorite movies are Toy Story, Pirates of the Caribbean, Interview with the Vampire: The Vampire Chronicles, A Little Princess, and Kiki's Delivery Service
- Nijuuni's favorite video games are The Legend of Zelda: Ocarina of Time, Kingdom Hearts, Kingdom Hearts II, The Sims, and L.A. Noire
- Nijuuni's favorite gaming platforms are PlayStation and Nintendo
- Nijuuni uses Photoshop CS5 and the Wacom Intuos 3 pen tablet
- Some random interests Nijuuni has are comics, architect design, character design, literature, photography, and long distance running and fitness.
- The term "squib" is from Harry Potter. The caretaker of Hogwarts is a squib, which links to the _SQUIB_ AI that looks after the Time Cops lab.
- Her username "Nijuuni" is Japanese romaji for the number "22" (二十二, nijuuni).
- She is currently dating Sjin.
- "Yeah, suddenly shit"
- "Just don't call me a squib, it's very rude. You can...call me a cat lover! I love cats, so..."