Vanitas seems to take nothing seriously, and almost always has a playful grin on his face. He acts impulsively most of the time, and his plans are normally reckless. Vanitas carries a mischievous air around him. However, he is capable of showing seriousness when the situation called for it, as well as anger. Beneath his flippant attitude, Vanitas is a broken man who despises both humans and vampires, but hates himself more than either. Vanitas hates being vulnerable around people.