Despite her cutesy looks and meek personality, Petra is pretty foul-mouthed and known to curse profusely, especially during horror games. Her short stature and tendency to get frustrated easily led to her being labeled the "most bulliable member of EN" until Mysta took the title from her. She's very close with Reimu Endou, having been friends with her long before NIJISANJI to the point where they refer to each other as their "wives," and she frequently interacts/is depicted in fanart with Shu Yamino due to their similar hairstyles, which has led to them being known as the "penguin siblings."
