OH BOI THIS IS MY MOST AWAITED GACHA GAME !!!
CODE GEASS LOST STORIES <3 this one is a very cool game !!
The gameplay is similar to arknights but it's a bit more 3d and the graphics is so good !!
The only down side it's a gacha and if you had money you will had a chance to get more good characters
But for free 2 play players it's easy to reroll....
it's available at android !! I don't know for IOs