Zero-Tails

The Zero-Tails primarily resembles a dark purple leech with a serpent-like body. On its face, it wears a blank white coloured Noh mask that has the kanji for "zero" (零, rei) on it, which is tan in colour and five red hair-like strands sprouting from it four at the top and one at the bottom. The Zero-Tails showed to be capable of distorting its mask to resemble expressions. It also has a mouth that can open very wide, and it contains large molars.