With the release of the first half of RAISE A SUILEN's Band Story is a free Gacha where you can get a card of every RAS member! There will also be a login campaign for up to 1900 stars, 1000 on the first day!

Something to note from the Band Story overviews. In the second half, a new area, 'CHU²'s Mansion' will open and the 1☆ cards of RAS will release. Repeat, the 1☆s release in the SECOND HALF. Otherwise, RAS' EX Missions release in the first half, while their area and lounge conversations are added in the second half. There's also 'Album Missions' in the second half, which I have never heard of. If anyone knows what they are, do tell. If not, and they're new, they could be about playing songs?

Edit: Thanks ChomamaLi, I remember now! Album Missions are the missions for the character titles!