Right, so this might sound a little weird, but I figured it was worth asking. Two of the three games I've played this month, NIER, and Child of Eden, have main characters whose birthdays happen to be mentioned in the games, and both the lead character in Nier, and Child of Eden's Lumi, were born on September 11th. Now, this is probably just a coincidence, but it seems odd that of all the dates it could possibly be, two unrelated characters in (Japanese) games which don't have stories that relate to the infamous 9/11 tragedy in any way happen to be born on that date, and I happened to play these games back to back.

It got me wondering if this is a common birthday to use for fictional characters in the East and/or if the date holds some significance in Asian culture.