Sharona Marukura is the older sister of canon character Marucho Marukura and only appears in Bakugan: Next Generation content as her son, Chichi, is a member of the Next Gen Brawlers.

Sharona is the older sister of Marucho and was raised in a very elegant and lavish environment. It is unknown who or how Sharona met Chichi`s father but they are no longer involved with each other. Shortly into Chichi`s childhood, Sharona became addicted to drugs, something that greatly affected her son. Seeing how much pain and trouble she was causing him, she finally checked herself into rehab to get clean. She sent Chichi to live with her brother until she gets batter and is able to be the mother that Chichi deserves.