User blog comment:MyProjectAlicization/Kuroyukihime - Kirito and Asuna's daughter?/@comment-71.190.23.155-20130611030356/@comment-1173941-20130611040415

http://www.t-ono.net/sakura-con-2013/Reki-Kawahara-Panel-Sakura-Con-2013.html

Q06: Is Kuroyukihime Kirito’s daughter?

KAWAHARA: There seems to be some conjecture that such a thing could be possible. However, it’s already said that Kuroyukihime’s family was not a happy one. If she was Asuna and Kirito’s daughter, in the twenty years between the time settings, they had a really bad falling out in their relationship. I hope she is not the daughter of Kirito and Asuna.