Shinobu Mibu

is a chūnin from Konohagakure.

Background
In the anime, Shinobu was part of the Ibiki Morino's team that went to intercept Kirigakure's Cypher Division. They were met with resistance and a battle ensued.

Personality
Shinobu is a curious shinobi. He is also very brave. He can also be foolish at times as seen when he sent many shinobi to attack head on during Konoha's second invasion.

Appearance
Shinobu has spiky brown hair and dark eyes. His outfit is essentially that of the standard Konoha shinobi, with the exception that the clothes under the flak jacket has been modified so that comes up all the way over his head, like a full body suit that can cover his entire face leaving only his eyes exposed. His forehead protector is also attached to the suit.

Abilities
In the anime, at the time that Konoha faced Kirigakure's Cypher Division, he was seen carrying a sword, which presumably means he has some skill in kenjutsu.

Konoha Crush
During the Chūnin Exams, he guarded one of the entrances of the village alongside Ibiki Morino. He questioned Ibiki about the type of person Orochimaru was and why he became a missing-nin. He listened in shock as Ibiki told him that as a child he never felt like Orochimaru was human but merely something assuming a human form. Later when the village is attacked he and his team-mates attempts to fight off Orochimaru's snakes but their efforts did little to no good. They were saved by Jiraiya who summoned Gamahiro on top of the snakes killing one of them.

Twelve Guardian Ninja
During the second invasion of Konoha, he was seen foolishly shouting orders to intercept Furido's squad before they could enter the village through the main gate. Genma Shiranui soon arrived and reprimanded him for sending the shinobi head on into the fray. He was later seen assisting in the battle with the revived shinobi.

Akatsuki Suppression Mission
He was later seen in the anime as a squad member of the Nijū Shōtai infiltrating and searching an underground hideout for Akatsuki. He returned from the infiltration and reported that he hadn't found anyone or seen anything down there.

Fourth Shinobi World War: Countdown
In the anime, when Kakashi carries Karin to the Konohagakure Intelligence Division for Ibiki to interrogate, Ibiki motions to him and he takes a hostile Karin inside.

Naruto the Movie: Blood Prison
During Naruto's flashback to the members of the village when he was gathering natural energy to enter Sage Mode, Shinobu can been seen amongst the villagers.

Trivia

 * "Mibu" is a town in Japan, while "Shinobu" means "to endure," or "to conceal oneself" and is a variant word for "shinobi".