Collapse Iron: Today's mount is the female protagonist.

Kiana noticed that everyone at St. Freya seemed to be acting strangely lately.
Mei secretly pulled her to the rooftop.
Mei: "Kiana, after everything we've been through, I've been dragging everyone down. I don't want to be powerless and helpless in the next crisis. I want to become stronger!"
Kiana: "Mei..."
Mei: "So Kiana... could you lend me Qi Shi?"
Kiana: ? ? ?
Bronya secretly pulled her into the room.
Bronya: "Kiana, Seele is still waiting for Bronya in the Sea of ​​Quanta. I swore that no matter what happens, I would rescue Seele. Please, Kiana, Bronya wants to become stronger. Bronya has things she must accomplish!"
Bronya: "So Kiana... could you lend me Qi Shi?"
Kiana: "???"
Bianca openly dragged her to the training ground.
Bianca: "You're the newly crowned Valkyrie Kiana? I'm Bianca Durandal Atagina, wanna have a match?"
I don't care about winning or losing; I just want to know why he values ​​and favors you so much, and treats you so specially.
Kiana: "??????"
What exactly do you want?!
End Worm: Why am I involved in this?
(The storyline will also include Honkai Impact 3, Zone Zero, Honkai Impact 3rd, and the Marriage Fairy.)