It was only a matter of time before Peach was crowned queen, since Toadsworth's game was nearing its' end; she had decided, of her own volition, that in order to rule her kingdom properly, she must deal with this hole in her memory: the night near exactly 12 years ago now, before the obsessive kidnappings of the Koopa King, she can only remember she was on the roof near the back of the castle, the garden where Luigi swears his name is written, then she was in a bush that wasn't there before, a hole in the garden wall, looking up to see a magikoopa and what she could swear was Bows-
She clutched her head, it felt like Toadsworth was screaming at her through her mind. She had been scolded plenty before for asking about the past, especially of her family, and when she wasn't scolded, she was brushed off, simply told she needn't worry about it now, it was in the past. It was all for that perfect image, but as her latest kidnapping had urged her to do, she figured it was time she found things out for herself. It was time to admit she was tired of being "Perfect in Pink" and wearing that plastered smile, but those days are long past her now.
So she decided to head to the man, or rather, Koopa, who plagued her thoughts from day one. She made way for the Koopa Kingdom. The citizens ought not to give her much trouble, given this is the only time the Princess has come willingly, since they know not only is she strong on her own front; she's the King's unobtainable treasure, at least for now.