Not necessary to unlock, Character appearences( third Arc )
Su biyu: A rather tall and thin woman. She has silky short silver hair and pale eyes with what you could call a pupil , even if it's basically transparent and is barely visible. Her eyes can have red dots appearing on them depending on her emotional state and they can even turn completely red in some instance. She usually wears an outfit made out of bits of clothes and armor she took from her victims.
Flies Members: The actual members of the Flies' organisation wear normal everyday clothes to hide their true identity. However to identify each other they all wear the various symbols that can be found on the warehouses' doors. The more 'inner' members wear the symbols of the actual leaders of the organisation, one of those symbols being a two headed flying snake.