Rins assistant an excitable plush rabbit without a mouth which can speak and move on its own. He originally belonged to a lonely girl named Noa who confided in Alpha often. Wanting to end her loneliness he wished to be able to speak and move to help her Rin appeared to him offering the means to do so until Christmas at the price of Alphas eye. However when the time came to collect his fee Rin chose to take all of Alpha to as a new assistant.