Ayu.......family??

[BigAyuFan]

ok ok ok we all no Ayu has a mom and her dad left when she was little.then her grandmother came to stay with her and her mother.her mother was a hard worker and all and then ive been wondering this a few times already...does Ayu have any brothers or sisters??on a bunch or posts and other fourms say she does not bbbuuuuttt on her information life story kinda things say something like this
[Ayumi Hamasaki information]
Place of Birth: Fukuoka
Blood type: A
Height: 5'1" (156cm)
Weight: 88lbs (40Kg)
Record Label: Avex Trax
Interests: watching baseball and music.
Music: I listened to rock (Led Zeppelin, Deep Purple) through the influence of my older brother. Now I enjoy listening to black music like Babyface, En Vogue, etc.

now does that mean someone who has been like a older brother or what.i asked this because i dont often hear bout him or see pictures so whats going on??