Chan is a Japanese honorific used usually on teenage girls or female young adults. You also wouldn't say Miku-Chan because the Japanese use the last name. If my last name was Hoblem, I'd be Hoblem-chan. Kaan is used usually on teenage boys or male young adults. If you used Natsu Dragneel, he would be Dragneel-Kaan.
Kaan is used usually on teenage boys or male young adults. If you used Natsu Dragneel, he would be Dragneel-Kaan.