November 06, 2006 (Season 1)

After 1990, everyone went their separate ways. Mike tried to become a writer, Will became an artist, and found himself a boyfriend. Lucas and Max live their best lives out in California. Dustin goes to MIT and becomes an astrophysicist, and somehow ends up with Suzie again somewhere in Massachusetts. Everything was going well until it didn't.

May 6, 1996 - Mike went missing.
November 6, 2000 - Mike was pronounced dead.
November 6, 2001- Steve's wife goes missing.
November 12, 2001 - Steve's wife is found dead.
November 6, 2004 - Steve was killed.

For two years, everything seemed fine. The Harringtons are the new Hawkin's freaks. Lucas and Max's kids found their places in Hawkins. Dustin became a well-renowned astrophysicist alongside Suzie becoming a famous engineer, and Will broke up his relationship with his fiancée, Carlton. Everything was going normally. Until the date November 6th, 2006, came around, and Bella couldn't find her younger sister, Stella Harrington. Now Will is noticing too many coincidences, and Lucas doesn't believe in any.

Or

This is a Stranger Things, Omegaverse, continuation/2nd generation Alternate Universe, where everything goes wrong.

Season 1 of Stranger Things: Relapsed