Kim, whose contract expires on May 31, will attend a charity event in Amagasaki, Hyogo Prefecture, on Saturday and it will be her final action with the team. The 23-year-old has yet to determine her future.
"I've been able to show good plays with the enormous support from the fans in the last two years," said Kim, who contributed to the Marvelous' V. Premier League championship run this season. "I'm leaving with a lot of things that I've learned at JT and through Japan's V. Premier League."
Kim joined the Marvelous from the 2009-10 season. She is a regular member of the South Korean national team.