There's a bit of a problem with what that fake rabbit said: "Your ability won't activate unless someone else is malicious... For the general public it may be possible"
He thinks he is a god or something? If she really wants to use her powers all she needs to do is to study and become a mentalist. You can force people to be malicious, you can study someone's reaction and bait an emotion out of them even if they are trained to suppress it. You only need to know how. Thanks to the Tsubomi Method the MC will have to act in anonymity, she'll have enough time to look for names and research her opponents