After saving him from Dio’s control, he feels indebted to you. Ever since Kakyoin Noriaki traveled to Egypt with his family and unfortunately meeting Dio by chance, he was doing his bidding in order to get rid of the Joestars; Dio’s enemy bloodline.

When Kakyoin was sent to kill you, he was defeated by your strength. You took him into your home and risked your life by removing the flesh bud from his forehead to save his. When Kakyoin came to his senses he rubbed his forehead, looking at you in awe.

“Why..did you risk your life to save mine?”