He takes his job of guarding the Mokomo Dukedom's gates very seriously, as demonstrated when he became angry and insulted the Straw Hats after they tried to reach Zou without permission. He is also dedicated to his job of ringing the country's bells in the event of guests arriving or enemies invading.
Like a stereotypical monkey, he loves bananas, to the point where he will accept them as a bribe.
He has a habit of saying "ete" and finishing sentences with "degosaru".
The samurai and Bariete later attempted to climb to Zou using a cat created by Kanjuro's Devil Fruit powers, but the attempt failed due to the water from Zunesha's self-washing dissolving Kanjuro's drawing. After this, they went back to the Thousand Sunny and planned to climb up to Zou the next day.
The following morning, they finally reached the top of Zou, where Kin'emon asked Bariete about Raizo. However, Bariete ran away from them and intended to announce their presence to the Mink Tribe. Once he arrived at the Mokomo Dukedom, Bariete rang the Bell of Welcoming, alerting both the minks and the Straw Hats.
When Jack returned, he attempted to destroy Zou by killing Zunesha, who retaliated on Momonosuke's command and sank Jack's fleet with one blow. Having witnessed this, Bariete informed the Mink Tribe of Jack's defeat.
Soon afterward, as the Sanji retrieval team departed from Zou, Bariete and the others were shocked when Luffy jumped off Zunesha with his party.
After the Sanji retrieval team left Zou, Bariete informed Wanda that Carrot went with them and apologized to her for allowing Carrot to leave unnoticed. However, Wanda forgave him, which prompted Bariete to eat happily one of the bananas with which Carrot bribed him.
↑ 2.02.1One Piece Manga and Anime — Vol. 80Chapter 804 (p. 14) and Episode 753,
Carrot notes that something must have happened to Bariete if intruders are passing through the gate to the Mokomo Dukedom.
↑One Piece Manga — Vol. 81Chapter 816 (p. 3),
Bariete is confirmed to be the monkey who impeded the samurais.
↑One Piece Manga and Anime — Vol. 81Chapter 815 (p. 16-17) and Episode 766,
After returning to Zou and being asked about Raizo, Bariete runs away from the samurai while planning to announce their presence.
↑One Piece Manga — Vol. 82Chapter 821 (p. 17-18),
Bariete informs the minks of Jack's defeat after witnessing it.
↑One Piece Manga — Vol. 82Chapter 822 (p. 14-15),
Bariete is present for Luffy jumping off Zunesha with the rest of his party.