@Shaz
Ah right, didn't notice it is a common event, sorry.
But the thing is, if you put a common event as Parallel or Autorun but put no switch, it'll be running all the time. So, no, the switch is not on. And the OP mentioned it is an intro, meaning it is supposed to be the first thing the game plays. Meaning they do not know you have any other way to do it.
@KoMo_Riz
Don't use an Autorun Common Event as your intro. A common event is an event that is able to run all the time, while a map event only runs on that map. They can be set to be called by another event, or parallel process and autorun. Save for working in every map, the Parallel Proccess and Autorun common events work the same as a map one set as the same.
Events in Parallel Process and Autorun do it in a loop and as long as the condition is true, in the case of a common event when the switch you set there is true - and if you did not set one it'll go all the time forever.
And an Event set as Autorun means nothing else is running. As long as its conditions are set, it is going to work, forever, and the rest of the game is frozen while it loops. Maybe some Parallel Processes run too, don't remember, but the player can do nothing.
So, for an intro, the suggestion is not to use a Common Event as Autorun, but a
map event as Autorun.
Even if you do use a common event for this, unless you want it to loop forever you'll need a map event to turn on the switch, as Shaz mentioned.
Then, to stop it looping, you have the choice of:
giving the autorun event a new page with a condition the autorun turns on/off, like a switch or variable,
use an Erase Event (but for an intro it is not a good idea, since returning to the map it is back and runs again)
or... just teleport to another map and never go to that one again. An Autorun event keeps running, even after you go to another map, but only loops on the original map. Setting a Move Route and the like may become confusing though.