Sakura Aoi is one of the six people set to possess a fallen Death Note. However, in complete contrast to Light Yagami, she uses it utterly indiscriminately with no attempt at all at justification. This makes her - we are warned - the 'most terrible Death Note user' that we've seen yet.
Bringing her to life on the silver screen is Rina Kawaei, formerly a singer in the Japanese idol girl band AKB48. On Warner's official Death Note 2016 website, she proclaims herself excited because this isn't any kind of role that she's played before. She's looking forward to the challenge.
Moreover, she's thrilled because this is Death Note! Though finding that a slightly strange feeling, on account of her excitement being about a story wherein lots of people die. Oh, Rina! Hang out with us. No-one will think you strange amongst this readership. You're amongst friends and kindred spirits here!