It's a rigged gacha. Don't even try it, or the game itself.
Go to DMM to play this instead.

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My opinion on this bullshit is that it is high time we spoke up to Nutaku about their shitty business practices - with the lack of money or support.

When entire game features are paywalled, when units not originally paywalled are made paywalled, when the high-end rates are reduced to just about zero and the original rates are paywalled, this is absolutely unacceptable for the players.

We won't tolerate such blatant greed and abuse of the playerbase. Say NO to Nutaku Sengoku Providence!