Cayenne wasn't allowed to use any gadgets using the excuse that radiation will cause her more harm and that will also make her illness worse. As someone who "cares" about her illness, Nikko Rule told her to lay low from using gadgets within a month. Once she's married and fully recovered, she will be allowed to use.
Of course, Cayenne didn't need to think much of what was the real reason. For someone who was eyeing on the gains while thinking for any possible losses, Nikko Rule would make sure that she won't remember anything about her past. He would make sure that she won't find out the truth of her identity.
As for the reason why she needed to wait for one month, it was because, Diana was still making a new account that will be under Ayena Rule. You can say that they were putting so much thought in their plans, too bad, Cayenne knew already about all the possibilities and she was well prepared.
She has anticipated what their next moves would be.
