Traveling the Multiverse

On the outside, you're a normal person but you hold the secret of multiversal travel through a magic book you uncovered from your family's old stash, magic exists, who knew? However, you were taught by your grandmother who was a witch or rather a plane-sorcerer in her youth and revealed the secret of dimensional travel to you, able to fly and even change your size and mass.

There aren't limits now for you can go through the planes on your leisure.

Rules:

You can do whatever you want, there aren't limits but do not end the storyline.

Also, no Scat, Diaper, or Toilet content.

Everything else is fair game.