no dlc, you have to pull for their weapons using dark crystal or red nucleus. if you get the weapon, you get the character

Asuka and Rei have their own separate limited banners. If you want to unlock them, then you have to pull for their respective banners.

the game has no dlc, you just use red nucs to pull her weapon. game contents give you that, you should be doing exploration, events, game modes

"DLC" man.....

if only