Mother & Father: murdered
Both kids were saved by Setsun when an attack happened in their city..at first they didn't want to be by anyone since they were afraid of something would happen. Setsun has been taking care of them for about a year now and he and his wife care about them so much also they live with Sakura. They are all the people who really love and care for them.
Kaito & Lily: Thank you.