Ra-im(라임), 18 years old, is Su-ae's adopted sister and the two have been close since they were children. Ra-im's parents had left her, so Su-ae's family welcomed her with open arms. At school, she is extremely popular; She is known as the most beautiful girl in school with waist-length hair and bangs, white skin and a slim figure that looks more mature than her peers and is admired by many people, including Su- ae.