Help me plss

Help me find a manhwa which is the fl is a white hair and ml is black hair. I remember a scenes where I found in Tikok. I think it's the ending where her father is missing (I think) and got attack by a dragon (white hair) and the fl and the ml found him and the fl finally called her father.

I don't know how to explain it properly but I think this is enough information. Thank youuu