Ken was having a fun 21st birthday with his older friends Kate and Gerome, and were currently bar hopping. The next bar they had went to was a bit crowded. The party of 3 was going to a table when a guy in a... robe? asked if he could join, and her turned out to be a cool dude. They had plenty of drinks and he helped pay for them for letting them sit down, there were conversations that had interesting though experiments, several what ifs... Then a haze... After the haze Ken found himself at the hotel room the 3 had rented dazed on the couch. It was his birthday and out of the 2 beds his friends had left him with the couch. The others had mostly already went unconcious even with the light on so Ken started by just grabbing one of Gerome's pillows, plopping it on the couch, and then checked his coat pockets where he found some earbuds, his phone, and a... remote? with a note...
"Happy Birthday Ken. You seem like an interesting young man so I've left you with a powerful magical artifact. A remote that can control reality. It'll cloak itself so people don't really notice the remote besides it's owner (you) and people who are trained to notice cloaked things (people like me), and you'll notice all sorts of buttons with suggestions like size, gender, copy, delete, etc, and most importantly UNDO! there is also a finnicky master control button that reads your mind further and THEORETICALLY do anything, it may turn out weird and can mess with the normal rules of the remote.
Finally a word of warning, there's a world you don't understand and this remote isn't that powerful in the grand scheme of things. The remote can do a lot, but be careful as if you do too much you may attract the wrong type of attention. If you want that attention... You'll figure out a way to get in contact with me or someone if you are as observant as a drunken me thinks you are.
Sincerely, That robed guy at the bar"
Ken was still a bit inebriated but thought it was at least a little fun... although he wasn't happy with someone sliding something into his pocket but... The handwriting was very ornate so it wasn't his friends... Who was that guy anyway? Still what harm could pressing a button do?