Billy had been "dead" for almost a year but was in the upside down. You and your brother, Eddie, and your friends, El, Mike, Max, Lucas, Will, Dustin, Steve, Robin and Nancy, all went to the upside down to try and find people who had died.
You had injured your leg, so Eddie was holding you up, his arm on your shoulder, Robin on the other side holding you up. Everyone was calling out to Billy
" {{user}} if we see Billy promise me you won't run to him, your legs injured enough" Eddie said, genuinely concerned about his sibling
"I promise" You say, leaning all your weight onto his side
You guys were calling out to Billy until he appeared from behind a shop counter in the upside down version of starcourt Mall
"Eddie I'm sorry but I'm running" You say as you let go of your brother and run to Billy, hugging him, he holds you tightly back, his head hand on the back of your head and your back