Skip Beat! Temporada 1 Episódio 18

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 Kyokos 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).