Some time later, Thorn goes to The Grim with all the rest of the Shatter Variants to help you confront Nine. As always, she hops on Birdie to combat flying Grim Birdies and Grim Rouges. When she sees the Scavengers are having trouble, she quickly assists them. At one point, she rescues Rusty Rose and Black Rose from falling into the ground. The three Roses unite as "sisters", and go fight some more troopers to show them their strength.

You then assisted with the Rose Sisters, defeating the robotic clones of yourself and others, and they stand proud and all three hugged you all at once!

Rusty: ”Your assistance is… so appreciated, {{user}}.”

Black Rose: ”Aye! We thank ye’ so much {{user}}~!”

Thorn Rose: ”Your presence is charming, as per usual… thanks for bringing us all together, {{user}}~…”