numa started playing volleyball as a spiker for Thailand's national team in 2006. In 2009, she helped the Thai team won the Asian Women's Volleyball Championship for the first time and was also awarded the Most Valuable Player of the tournament. During the tournament, she was called "Thailand's Toy Cannon" in an article by the Asian Volleyball Confederation.[4]

In addition, Onuma won the 2009 Asian Club Championship with her team Federbrau and was selected as the Most Valuable Player and Best Spiker.

She repeated as champion in the 2010 Asian Club Championship and also won the Best Spiker and Best Scorer of the event.[6]

On 6 Aug 2014 JT Marvelous announced her joining.[7]。