Story Summary

B Rank Valkyrie Kiana Kaslana of St Freya is sent on a mission to capture the Anti-Entropy battleship Selene. After riding on drones and taking out honkai beasts Kiana makes it to the Selene and meets up with fellow B Rank Valkyrie Radien Mei of St Freya, after a fight with some honkai beasts Kiana gets hurt and the 3rd Herrscher takes control of Mei to kill the beasts and save them both. Mei and Kiana then meet up with B Rank Valkyrie Bronya Zaychik of St Freya, together they make their way through the Selene and get to the bridge to take control of it. Bronya hacks the system by using the password of Kiana's birthday to give her full control, however Cocolia remotely activates the control chip in Bronya's head to make her attack Mei and Kiana. After Bronya is battled she regains control of herself and the 3 take the captured Selene back to St Freya with them.

Stages

1-1: Act 1 Moon Chaser
A battleship with a super-powered Honkai reactor is approaching Sapphire! What hidden plots await?
1-2: Act 1 Moon Chaser
The Selene... what a poetic name for a battleship. But the ship with spawn a Honkai Armageddon if it crashes.
1-3: Act 1 Moon Chaser
We have the strength of a hundred warriors when Mei's around!
1-4: Act 2 Shattering Thunder
This battleship is filled with traps and enemies. Defense systems must be nutralized to enter the central hub.
1-5: Act 2 Shattering Thunder
Finally made it to the enterance at the aft. Of course, enemies have a habit of coming out at critical times like these.
1-6: Act 3 Prophecy of Selene
Bronya's hacking skills managed to get the sealed cabin doors open. The Valkyries finally made it to the insides of the battleship.
1-7: Act 3 Prophecy of Selene
Design and technological features of this battleship betray its origins: Anti-Entropy, a secretive organization that opposes Schicksal.
1-8: Act 3 Prophecy of Selene
Bronya's superb hacking skills managed to provide us with Titan piloting access to better explore the battleship.
1-9: Act 3 Prophecy of Selene
Four gems? Keys to unlock a new world? How does all this mumbo-jumbo have anything to do with me? I'm Kiana Kaslana!