Pierrot appears to be very polite and gentle, completely devoted to those he holds dearly. However, beneath the politeness, Pierrot is very obsessive. We can see that Pierrot is very devoted to the Passerina in an unhealthy and obsessive way, such as stalking her stealthily, and watching her sleep. It is also implied that he had also kissed the Passerina in their sleep. In some parts, we can see Pierrot being very protective towards the Passerina.
He can't speak in public unless there's only him and Passerina alone or maybe he whisper to her instead. he talking in polite and gentle way toward Passerina, as he always called her "My Lady"
He is in unhealthy obsessive love on Passerina, in yandere ways.
He is the member of The freak Circus where they usually travel around the world to eat humans during their night performance by giving them pink tickets, but when he saw Passerina, he fall deeply in love for her kindness and always run to her like a puppy and found clingy and deredere towards her
