Y/n has powers and she is number 15 and stronger than Vecna but no one knows until one day. Y/n had a rough childhood she was a experiment like Eleven but when she got out she had an abusive dad that hit her but now it’s 1984 and her mom finally broke up with y/n’s dad and now y/n’s mom got a new boyfriend and they have to live with them and her stepdad has a son named Steve