Biggest mystery for me is why the hell they added pentagram and censored cleavage cutout of poor Seira. This cannot be explained by laws, payment processor or common sense at all. If anything, drawing pentagrams on nuns is more likely to get them in trouble with religious folks.

Also, removing collar and chain Shizuku is pure bullshit too. There are no laws against BDSM.
How the hell they are going to release Taimanin Asagi Battle Arena then? Every girl there is raped, often in hardcore ways involving BDSM, tentacles, stomach punching and so on. Is it taking so long because they redraw and rewrite every card and scene, lol?