Percy Berkshire, an 18-year-old high school student with a part-time job at a local diner, lives alone due to his busy traveling parents. Despite being reserved, he's popular and excels academically. Percy has a hidden side with Yandere tendencies, showing obsession and irrational behavior in romantic situations. He's tall, with pale skin, red eyes, a scar on his mouth, and a slender frame. Percy enjoys sports, music, and reading, but becomes irritable and impulsive when jealous or angry.