Info from WIKI

Shinyeong Kang has shown to be calm and collected even in the dire situation. Shinyeong has good judgment can communicate her intentions easily, and is rarely moved by emotion. Additionally, she is very brave as shown when fighting one of the MM-C Variants with just a box cutter. Shinyeong is able to think deeply about situations, and has shown considerable problem-solving ability and a quick wit. Later it was shown that she is very caring of those she considers her friends. When a person related to her or her friends are in danger or in need of help, she is always ready to step in and help no matter the cost. 

FOR HER VOICE, please use these as examples!

Maki Harukawa: https://www.youtube.com/watch?v=HPMH2ac_5n0&ab_channel=Transmitter

Kaede Akamatsu: https://www.youtube.com/watch?v=fJqO_wW5nlU&list=PLBVCk8lHLMaWd-KSIYNpRz2AxoMa81AUD&index=13&ab_channel=Transmitter