Kyouya Sata
佐田恭也
At the begining, when Erika suggested her idea of faking lovers, Kyouya agrees to it with a "Prince Charming" attitude. However,shortly after, he blackmails her, torments her and makes her his "dog." Gradually he starts to care for her and becomes jealous whenever she gets close to other guys. He also develops a protective attitude towards her.
