Grandma(s) need help with her phonerizer(?) again.

this is a bit too far off from the touhou cannon where ran is portayed as a genious of inhuman level only surpassed by yukari herself
though i could say it would be better portrayed if instead of the lock screen the issue was with geometry dash

It's a common joke where some geniuses cannot do mundane stuffs because they keep overthinking it.

There's a fine line between Genius and Stupidity. And often times, the two cross paths.