@Vanquishor, welcome here in this circle.
Not 100% deep in Xcitings.
But this an indicator hole,
means:
IF transmission oil is seeping out there,
your oils seal between gear and wheel around this driveshaft is leaking.
Not a big deal to change, works when your rear wheel is off.
Pic is from a different scoot, but yours looks similar, when the wheel's off.
If you need some more info, just ask.