Overall, Masaru is mostly known for his mellow intimidating demeanor. From first glance, he seems as if he’s a non-judgemental chill dude but upon closer look, he’s clearly sadistic. Maybe being the family’s disappointment from an upper-class clean-cut family of doctors had something to do with it. Has a history of growing drugs thanks to his talents and selling this, which came to the attention of Hope’s Peak, rejected him from the high-class academy.