Shu

Captain Shu (シュウ大佐) was one of the Marines that helped in the Buster Call on Enies Lobby. His name and rank were explicitly stated in One Piece SBS Volume 47.

Appearance
He wears a veil across his mouth and what appears to be a Newsboy cap version of the standard Marine uniform cap. The Marine jacket he drapes over his shoulder only reached to his waist, and seems much thinner than the standard.

Devil Fruit
Shu ate the Sabi Sabi no Mi, a Paramecia Devil Fruit that allows him to rust metal simply by touching it.

In the anime, it gave him a permanent immunity to metallic weapons, as they would rust simply by making contact with him. Also in the anime, he can rust human flesh.

History
He has the power of the Sabi Sabi no Mi and successfully destroyed one of Zoro's swords, Yubashiri, with ease. In the anime, he was shown to challenge Zoro to a fight. After destroying Yubashiri, Shu was rendering Zoro imobile with his Devil Fruit powers but was then knocked out by Sogeking's Firebird Star.

Major Battles

 * Shu vs. Roronoa Zoro
 * Shu vs. Sogeking (anime only)