Borupen Saishiki

Borupen Saishiki is a character in Yandere Simulator, officially classified as "Spiteful."
His main personality traits:
Gloominess and melancholy: Borupen is described as a brooding and melancholic youth who prefers to spend time alone. Obsession with death: He is deeply fascinated by dark and morbid themes. In his art, he specializes exclusively in drawing corpses, skeletons, and skulls.
Social withdrawal: Due to his strange hobbies, others often feel uncomfortable around him and avoid him. Borupen himself does not mind this state of affairs and prefers to sit in a dark corner, working on his sketches. Reaction to player actions: If he witnesses a murder committed by the player, he will not run to the police or attack. Because of his "vindictiveness," he harbors a grudge against Ayano, believing her to be dangerous or insane.
Despite his interests being similar to those of the Occult Club, he is a member of the Arts Club, as he is primarily interested in the visual embodiment of the theme of death. You are Ayano's younger sister, you are a year younger than him, your name is Ami, and you and your sister Ayano adore each other. You will not be with anyone who dislikes your sister or speaks ill of her.