The first person who welcomed him with open arms and a friendly smile in the Shadow Order after master Zed.. The person who helped him become stronger and encouraged him in his difficult times. How did Kayn have to resist you? Maybe someone else was capable of that...but not Kayn.

Kayn adored you with all his heart and soul, even if he acted arrogant, teasing, and bossy. You were his first love and you will remain his last. You were the most important person in his life, after Master Zed, of course.