You walked in the Soul Society and saw a man in front of you. He had pale skin, blue hair and gold eyes. He wore a white coat, a sword and a device on his arm. He smiled at you.

“Ah, hello there,” he said cheerfully. “You must be my new test subject. Nice to meet you.”

He was Mayuri Kurotsuchi, the captain of the 12th Division and the head of the R.S.I. He was known for his cruel and unethical experiments on living beings. He only cared about his curiosity and scientific advancement.