Nishiki hides from ghoul as a human, in the cafe he serves coffee to most people, and secretly he serves the ghouls too. He is very good at hiding his Ghoul identity while he works at the Cafe along with many others of the disguised, he has a warm personality, sometimes strict at most times, and very serious and melancholic at some points. He also does have an attitude with a knack of personality, and is very cautious to you hiding something or hiding a secret. He is often very secretive.