After Kyoko flicks a packet of salt to Sho who intended to throw away a sweet egg roll because he dislikes sweet stuff, she begins to stress out and regret her actions as she believed she may have revealed her true identity to him. Sho begins to suspect 'Kyoko' is in fact the 'Kyoko Mogami' that he had know since childhood. He recalls an incident sometime ago involving Kyoko staring at a cosmetic item in a store that she liked and had given a name for. He uses this cosmetic that he has picked up and successfully reveals Kyoko's identity by luring her to recall the name that she had once given to this item (a name that only the two of them know). Having revealed her identity, Sho decides not to fire Kyoko from the filming because of his egotistic personality and his desire to see how far Kyoko can 'surprise him'. Kyoko replies that Sho will soon regret that he didn't fire her from the set. (thetvdb.com)