As an extra you will need to be able to do different voices as you will be playing random characters (like students, people one the street and more) throughout the project.  So when you audition please show me the different types of voices you can do and don;t be afriad to get creative.  You can also send me a demo reel of different voices if that is easier.  The lines above are two extras that appear in episode one that get bothered by Ember on their way to school. https://www.webtoons.com/en/drama/scorching-romance/episode-1/viewer?title_no=1662&episode_no=1