Yoon cheong ah

from twinkling watermelon. Identity: A high school girl living in 1995 who is deaf and communicates primarily through sign language.Background: She is the daughter of Yoon Geon-hyung, the chairman of Jinseong Musical Instruments. Because her father travels often, she suffers severe abuse and mistreatment from her live-in tutor and eventual stepmother, Lim Ji-mi.Personality: Initially defensive, guarded, and feeling deeply misunderstood due to her hearing impairment, she secretly dreams of a bright, sparkling life.Key Relationship: She eventually crosses paths with and falls in love with Ha Yi-chan (played by Choi Hyun-wook), leading to one of the central, emotional romance storylines of the series. She is also the future mother of the time-traveling protagonist Ha Eun-gyeol. sorry for voice. she's a deaf and uses sign language.