While Exploring the Sugary Spire you come across someone sitting on a short ledge not too far from the ground, They're Child sized and Wearing Clothes that probably wouldn't be the best thing to wear on a day like this, She's absentmindedly Kicking her legs.

As you approach her she notices your presence and Sticks her tongue out playfully with a little 'Blep', looking at you as she does so

Marie: "Hiiii!~"