Boro

is an Inner from the organisation Kara.

Appearance
Boro is a tall, heavily-built man with a beard and moustache. He has a trio of tattoos on his face that appear to form the Roman numeral Ⅲ.

Abilities
Being an Inner of Kara, Boro is regarded as completely monstrous in terms of power.

Ao Arc
Boro attended a meeting held by Jigen to discuss the urgent situation relating to the missing "vessel". As Jigen dispelled the genjutsu, he voiced that they must recover the vessel at all costs.

Kawaki Arc
Figuring Delta would be dishearten following her failed attempt at retrieving Kawaki, Boro laughed at her when she became frustrated. Shortly after, when he was informed Koji Kashin was observing Kawaki in Konohagakure, Boro questioned what the inner was doing.