Part 3/10:

Now at the age of 13, Riley's growth serves as both an achievement and a source of anxiety, especially after a foul impacts her confidence. Joy activates a newly invented machine designed to disperse uncomfortable memories, allowing Riley to focus solely on her current performance. Meanwhile, Joy and Sadness discover a new realm called the System of Convictions, where they interpret the threads of light defining Riley's essence.

The Onset of Puberty: A New Challenge