My diamonds!

If you play a song you haven't played before, you can get a total of 100 diamonds from the rank rewards (S rank is even better!), so I recommend it! Sorry if you've already done this...

Diamonds are hard to save up, I wish they'd increase the amount you can get 😖 In QualiArts' other games, like Idolmaster: Shiny Colors and Gakumas, you get quite a lot of diamonds...

In my case, if I save for about 8 days, I get around +5000. Daily missions are a must, and you might want to play through the live events as much as possible. By the way, I think the acquisition rate will decrease once you finish the main story.

You just have to save up. I don't pull on gacha banners unless it's for my favorite character. That's what I do. I tend to pull on the HoloDori gacha more than event banners.

I spent them all on Yo-san last time, so I've only just managed to save up about 2,000... I'm slowly accumulating them by playing through songs I haven't tried yet, and by unlocking and clearing solo song achievements.

They're all so cute, I can't help but want to do gacha! I guess quests or live shows, huh? 🤔

Excuse me for commenting. If you have a team that can get an S score even on auto-live, you can just keep auto-playing unplayed songs to accumulate them~ Getting an S rank gives you 100 per song, so it's a huge gain.