Constructs and Valkyries

"Captain,what are you doing?"
"..."
"Captain?"
"..."
"Y/n,what are you doing?"
"*Smirks*Calling some old friends back"
The valkyries of St.Freya along with their newest allies from the previous era along with their best captain Y/n L/n are having a firm grip of their shield for humanity and against it's enemies.But they have underestimated Otto Apocalypse's influence and the honkai's advance against humanity.Despite their new allies The valkyries and their captain were lacking numbers and manpower to fight two wars at once.But there was still hope for the valkyries.Y/n inserts a mysterious hard drive into Hyperion's system and a strange logo appeared with a wing of a bird on it when he was asked what was he doing he replied with a smirk that he's calling some old friends back.How will the valkyries will react to Y/n's "old friends" who are the constructs the defenders of humanity against the punishing virus long before the discover and the invasion of the honkai with his old squad Grey Revan as the tip of the spear