At the very start, you will be able to select your characters' voice language! This option will pop up from the very beginning, and you will be able to choose between Japanese, Korean and none. If you want to listen to the characters' stories, learn more about them and experience the game with all of its features, you can choose the first option (Japanese) and start the game! You can then come back anytime and change the settings of the voice, and much more once the game starts. Simply open the top right menu, then in the Sounds tab you can see everything that has to do with the in game sounds. By heading to the "Game" tab, you can set up the game to run adequately on your device.