A Sister’s Brother and a Mother’s Son.

Kairo trains with Kat, and confronts her on her emotional nature and low endurance. This makes Kat a little too determined to prove him wrong, and accidentally sends him flying across the room with the newly discovered ability to coat her fists in explosive energy. Kairo suffers a minor concussion, but holds no grudge against the distraught Kat, and decides with Yoshi to keep the incident from public knowledge for the kid's safety. (Note: Kairo describes the kids to Xan, and reluctantly agrees to bring him DNA samples and a photo of them for his next mission).