Sinful Whispers

 Sinful Whispers  was a mahō technique which allowed a Mahō-tsukai to command the kansen to assail a victim's mind, murmuring dark things that wore upon their concentration, making them more receptive to the words of the mahō-tsukai and less able to think coherently. If this infection of the spirit was able to grow, the victim eventually found themselves unable to resist the mahō-tsukai's command.