I don't remember this either . . . but it sure looks like it redeemed the terrible ending, so that's nice because I hated the ending with a pure passion. The mother at the beginning is Karin herself after a time skip; the character that LOOKS like Karin is her daughter, who seems to have, at the age of 6, ventured into the vampirey forest and gotten acquainted with the side of the family Karin had forcibly forgotten, eventually reuniting them through sheer force of personality.