Shin Dongho is in love with a girl named Lee Hyeju. Hyeju is mute and Dongho does his best to take care of her and to protect her from the people that bully her. They always speak through sign language and Dongho finds her perfect. Dongho falls in love with her and vows to stay by her side but, it's hard for him to keep his promise when people are telling Dongho that Hyeju is weird and when his own friends force him to stay away from her. Dongho needs to find a way to let people know that Hyeju is the same as them. She may not be able to speak but, that does not mean that she isn't human. She has a heart as well.