Pua was born and raised in Borgerhout, Belgium. The small district is located in the providence of Antwerp, Belgium. She graduated from De Dames van het Christelijk Onderwijs-Antwerpen in 2013 and now attends BAFA Flight School. She is studying to become a pilot.
Pua started her pageant journey in 2016 when she won the title of Miss Filipina Europe. Afterwards, she tried her hand with the Miss Belgium Organization. She won the local title of Miss Antwerp 2017 which qualified her to compete at the 2018 Miss Belgium Pageant.
On January 13, 2018 Pua beat out 29 other contestants and was crowned Miss Belgium 2018 at the Plopsaland Theater located in De Panne, Belgium.
Pua is very proud of her accomplishments and says making it to the finals of the national pageant was already an achievement for her.
"It took me eight months of work to win the title," Pua said. "Before joining the Miss Belgium national pageant, we have to first join the regional pageant."
A lot of the critics were questioning how someone with an Asian heritage had won the pageant. Some of them even said that a ''typical'' Belgian woman should've won the crown – a blonde with blue eyes.
"I've heard about negative comments," Pua said in an interview with BBC news. "Of course, it hurts a lot to read those things about myself because I know those things are not true. I can show my ID, my birth certificate to prove that I am a Belgian."
Pua says she never encountered any form of racism when she was growing up.
"Never, that's why I'm very shocked about the news happening these few days because I've never been confronted with those topics," Pua said. "I've always been accepted by the people at work, at school, everywhere.
Fortunately, not all the comments about Pua are negative. Plenty of people have expressed their support for Pua.
"Her win was proof that most Belgians are embracing diversity," one online user wrote.
“Racism is a very sensitive subject,” Pua said. “It's not only in Belgium, I think it's worldwide."
Pua wanted to share an advice to all the victims of racism.
"You should not feel sorry because you should be proud of who you are, or what you are and where you come from," Pua said.
Pua will compete for the title of Miss Universe 2018 on December 17, 2018 in Bangkok, Thailand.