In The Conjuring 2, Ed and Lorraine Warren encounter a demonic nun figure named Valak. At the end of the film, Lorraine learns the demon's name and manages to banish it to hell. while audiences may have thought the film would be the last they'd see of Valak, she returns in The Nun.

Vera Farmiga's real-life sister, Taissa Farmiga, also stars in The Conjuring prequel, The Nun, as Sister Irene, sparking speculation that the two characters are connected, whether they are the same person, sisters, or related in some way.

Ne, Guuguru (0m0
0000): 0m  (ne) is a Japanese particle that means hey,  look,  or listen.  ^{X Research source} When paired with guuguru  (0000), the Japanese word for Google, you're essentially saying Hey Google,  which will activate your device.

Goo, stylized in lowercase, is an Internet search engine (powered by Google) and web portal based in Japan, which is used to crawl and index primarily Japanese language websites (before switching to Google). Goo is operated by the Japanese NTT Resonant, a subsidiary of NTT Communications.