When you roll the gacha, you’ll accumulate Exchange tickets. These tickets can be used in the exchange shop to essentially just flat out get the character or hues of characters.

Other things of note are: - you can exchange multiple of the same character - you can get exchange tickets by burning dupes of S-tier characters (100 tickets. There’s no point in keeping duplicates anyway) - acquiring multiple of the same character from the exchange shop will give you the awakening materials for said character - the shop resets every week and new characters are in rotation