I've provided a few interpretations of your request, depending on whether you're looking for art, character design, or media featuring diverse identities. Artistic and Character Interpretations
In creative spaces (like digital art or character design), the term "piece" often refers to a completed work of art.
You may be referring to a character concept (a "piece" of a larger portfolio) that emphasizes youthful, feminine features while celebrating gender-diverse identities. Modern Terminology
Various digital series feature "cute," youthful trans-feminine protagonists navigating daily life and romance.
For characters or individuals who sit outside the traditional gender binary. Literature and Media If "piece" refers to a written work: