If you want the full version and license for commercial use,
you can purchase here :

https://staircaselab.com/product/kayliee-mightness/

File Font Version : 

1. Kayliee Mightness.otf
2. Kayliee Mightness.ttf
3. Kayliee Mightness.woff
4. Kayliee Mightness Italic.otf
5. Kayliee Mightness Italic.ttf
6. Kayliee Mightness Italic.woff