Amnesia/guide

Two Knots
Go to Forest World and find a little girl who has two knots and sitting on a bench that gives you the Two Knots effect.

School Uniform
Go to Forest World and find a locker that leads you to the School, interact with the school girl that gives you the School Uniform effect.

Magical Girl
Go to Colorball World and find a dress on the floor that gives you the Magical Girl effect.

Angel
Go to White Star World and go to the center of a cross that leads you to Black Star World, go straight up until you reach a halo with wings that gives you the Angel effect.

Sepia
Go to Sepia World and find a mouse NPC that gives you the Sepia effect.