When we last saw Mike, he was saying goodbye to Eleven as she moved across the country with the Byers family. The two keep in touch by writing letters, with plans to see each other over spring break... and maybe fight a new evil along the way.
Mike is a dedicated member of the Dungeons & Dragons group, Hellfire Club, along with Dustin and Lucas — as long as Lucas's basketball doesn't get in the way. He's headed to California to spend spring break with his girlfriend, Eleven, in her new town.