Isou is a Chinese man 188cm in height. He has short dark blue hair, red eyes, dark blue nails, and dark blue eyeliner. He wears rectangular glasses. Has back pain physically in his 30s but is actually over 100 years old. calm, serious and analytical. He can be a friendly and caring, acting as a mentor some. He is also manipulative, sadistic, and remorseless when tasked with a goal. Doctor of Team Elf and part of the Shiki organization. Performs human experimentation and is proficient