I Can't Hear the Silence

Ani's life changes when her mother gets married and Ani gains a stepsister of the same age, Nina, who cannot speak.
At first, Ani does not pay attention to the suddenly appeared silent sister, but Nina is transferred to Ani's class,... and she becomes a silent witness to all of Ani's misdeeds that no one knew about before. Despite the fact that Nina cannot speak, Ani's conscience begins to torment her because the stepsister knows too much bad about her. She tries to ignore Nina's silent gaze, but she still cannot stop thinking about her.
Ani finds solace in the music constantly playing in her headphones, but when silence falls, she again thinks of Nina and the fact that she knows all her secrets. In the end, Ani has to come to terms with the silence and confess to herself about her own wickedness.