I am controlled by a D20?!

Mike was a high school nerd who liked role-playing games that involved role-playing (of course), dice rolling, and yelling at a piece of plastic because he rolled a one. He loved to buy gear and merchandise for every game he played to be invested in his character. One day a small piece of gear would change his life forever. After buying an extremely cheap D20 mike now has access to a character sheet of himself!? Now Mike has to roll for almost every action that he does or wants to do. In order to get rid of the dice for good and return home Mike has to go on epic quests to survive across the multiverse completing quests and hopefully finding whoever gave him the die.