Rapunzel

Very recently a children's movie had come out interpretating the fairytale Rapunzel. Because of this, the first story that comes to mind is this one, and you soon find yourself at the base of a tower, gazing upwards to see a single window at the top. Going around the tower, you see that there is no door nor stair case that will allow you entrance, and you cannot imagine yourself with the physical strength necessary to climb up the rocky footholdings on the sides.

Under the consideration that the version of Rapunzel you are in is the classic fairytale version and not the recent one, it is unlikely you will discover a club full of softhearted villains or a horse and chameleon, so logically there are only three characters in the story who could be the original tainted one, or the Soul of Lust: The Wicked Mother, the Prince, and of course, Rapunzel herself. Rapunzel would be up in the tower, but the Prince or the Mother would probably be somewhere in the surrounding woods.

The question is, who do you try first?