Irene says she is Erza’s mother. Erza says she was alone the whole time in rosemary, and she didn’t think she had parents. The only one she calls a parent is Master.
Irene says doesn’t matter to her. She thought Erza died a long time ago. They continue battling and Irene exchanges the following “Wouldn’t it be inconvenient to die without even knowing where you came from. Let’s talk about the past a bit.”
Erza says, “Don’t need to”
Irene says “My name is Irene Berserion, I was once the Queen of the Dragons.”
End text: Erza’s secret crosses time and space!
Chapter 514: Origin of Dragons.