The Miss Teen Iran 2021 competition was part of a modern national pageant system designed to introduce young participants through a structured digital format. The selection process was conducted online, where candidates were evaluated based on submitted profiles, personal presentations, and overall presence. This format allowed participants from different regions to be assessed fairly within a unified national framework.

Parastoo Moeini was selected as Miss Teen Iran 2021, representing a new generation of young Iranian women participating in contemporary digital pageantry. Born in 2002 and raised in a village near Arak, she entered the competition despite initial financial limitations that made professional preparation difficult. Her motivation grew from a long-standing personal belief in responsibility and self-improvement, shaped by early aspirations to make her family proud and later to achieve pride in her own accomplishments. Alongside her academic success, including a strong high school performance and university entrance ranking, she developed interests in languages, writing, and the arts.

Following her selection, she continued to focus on personal and educational development while representing her title within national contexts rather than pursuing international pageant expansion. Her journey reflects a balance between academic ambition and creative aspiration, including her interest in becoming a writer and artist. She is fluent in multiple languages and has training in karate, while also expressing a strong belief in using future success to positively impact others and support personal growth in society.