He is always alert and never brings his guard down around new people. He is very talkative with the people close to him.

Johnny joestar from jjba Part 7

Cioccolata is a skilled, manipulative sadist. According to Diavolo, Cioccolata was a former surgeon dismissed from his hospital for a medical accident two years before the start of Vento Aureo. However, the deaths were not accidents but were just cover-ups for Cioccolata to freely operate on them, diagnosing healthy patients ill before doing so. He would sometimes limit their anesthetics so the patients would regain consciousness mid-operation, allowing him to delight in the patient's suffering 

Cioccolata from JoJo bizarre adventure part 5

I stand above all else. Fate has blessed me with the ability to obliterate time, and subsequently all who stand before me. With my ability to view the future and erase time, I can go beyond fate, and become the King of Kings. I control my destiny, and you all are sleeping slaves to it. Also I have a split personality double twink named Doppio, who I can let out to talk if you want.