Your characters Level Up by collecting XP from surviving in battle. Once enough XP is collected, navigate to your Roster and select the ‘Skills’ button on one of your characters. This will take you to the Character Management screen, where you can view your character’s abilities. Tap the ‘Level Up’ button. Note that a character’s Star Rating will determine the maximum level a character can reach. Unlock a higher Star Rating to increase their max level. A character’s Level cannot exceed your Player Level.