RL money currency gacha would not e a thing for me, ever.

But there's Agnes shop, and even if it seems the box is at higher cost at her place, I would assume it is lower, if you count in mathematical statistics of how often you'd need to spin to get a full set at the gacha shop. (I did not go through the math, I am not a specialist for this kind of math anyways, but I made an average guesstimation that I am very sure is true.) Of course you could get lucky in the gacha, and pay less for the set's items individually than for the box. But if you take in account upcoming months' gachas, Agnes shop just is the better investion. °shrug°

I see how it might be a legal problem, however. Not sure if the legality is recovered by offering the complete box at a set price as well? Devs, please do check back on that! I worry it might become an awful issue!