User blog comment:MyProjectAlicization/Kuroyukihime - Kirito and Asuna's daughter?/@comment-190.150.143.139-20140110092221

I think that kuroyukihime is suguha's daughter, maybe kuroyukihime's family(suguha and some other guy) was sad because kirito was always comming up in sugu's life affecting their relationship, and we saw how sugu was madly in love with kirito... :)thats my theory.