Treasure Chest is a selfless individual who truly wants the best for his friends and his team, though he can be bossy. He strongly adheres to a sense of what he thinks is right, but he's prone to making impulsive decisions that cause his allies to hate him. He feels a lot of remorse for these mistakes, and despite wanting to make up with his peers, they all leave him. This causes him to be antisocial and demotivated until Cup offers to work with him.