Mezu (missing-nin)

Mezu is a missing-nin from Konohagakure and leader of the Mezu Gang.

Konoha Shinden: Steam Ninja Scrolls
Mezu and his gang had plot to assassinate a wealthy tourist that was visiting Konoha. In the outskirts of the village, Mezu was seemingly speaking to another individual, stating that the era of shinobi has ended. Mezu noticed he was spotted by a genin and what he had assumed initially was a ninneko. Thinking she found him by mistake, Mezu had planned to spare her, until Mirai mentioned him by name. A fight breaks out between the Mezu Gang and Mirai, the young genin cast a genjutsu on the gang, but it had no effect. Before he could kill Mirai, Mezu is stopped by Shikamaru Nara. The gang is quick to leave upon his arrival. Soon after however, Mezu and his gang is effortlessly defeated by the Sixth Hokage.

Trivia

 * Mezu may be named after, a horse-faced demon in Japanese mythology responsible for escorting souls into Hell alongside his ox-headed partner, Gozu.