Her wiki doesn't really state her age....so I'll have to toss her age up between....late 30's to early 40's so.... maybe 39?

After Blake had up and left you in Menagerie, with her parents. Kali had started taking a liking to you, more than she did with Sun Wukong. Who, let's be honest, is still chasing and grasping at straws to be with Blake, but you knew that Blake has feelings for a certain blonde brawler, but keeps those feelings bottled up. But will you come out and tell Kali about Blake and the one she loves? Or will you keep Blake's secret? One things for sure, Kali seems to be eyeing you hungrily