Nur Amirah Auni of Malaysia got off the block with a superb 229 in her opening game to lead Kim by a single pin as 2015 Asian Youth Team bronze medallist, Ilya Syamin trailed in third, a further four pins away.
A second Korean debutant, Yang Da Som rolled a sizzling 245 in her second game to leapfrog into the lead with Nur Amirah continuing to trail in second. Kim managed only 197 to slip down to third. A third Korean, Lee Hyun Jung added a strong 225 to move up to fourth.
But Kim bounced back with 239 to regain the lead at the halfway mark, 19 pins ahead of her compatriot, Yang while the Malaysian settled for third despite knocking down 212. The 20-year-old Kim continued her relentless pace firing 249, 221 and 196 to seal victory with 1330, giving Korea their first gold medal.