How do I get a Dirt spark? Is Urara the only one that can get it?

>>532077641
Shouldn't 4.5 anni be very soon? Now that I think about it...

>>531943807
They already kinda have something like that but with Touken Ranbu in a way, I used to play that and it's wild how much money that game still makes despite being 10 years old at this point and being somewhat niche...