A note about Flashbacks, in regards to what [@Redrum] said.

Whatever happens in Flashbacks will override whatever has been established in the present before that Flashback. For example, Redrum didn't describe Subira to have attended anything in a previous post, but that can be changed in the Flashback and such will reflect the present. So, whatever Redrum established for Subira in past posts is always be overwritten by whatever Redrum writes for Subira in Flashbacks.

The same goes for character relationships. There is no need to feel restricted in Flashbacks because you have established something in a previous post. For example, if your character doesn't know Olivia, but you really want otherwise in order to join in on the after party Flashback, then whatever you establish in the Flashback will be what is true in the present after the Flashback.

I hope this isn't too confusing! Much time-mumbo jumbo, but it makes things and the story dynamic between characters and players.