Due to his skills, he is cocky and arrogant. He, along with his teammates, has been described by Replica as being stupid, as evidenced by them incorrectly believing Arashiyama Unit has no real strength. Additionally, despite his strength and confidence, he gets easily scared when he realizes he's at a disadvantage.
(About Arashiyama Unit) "Arashiyama Unit is completely composed of people who were chosen to publicly advertise the face of Border, they don't really possess any strength, they're only a mascot team. This is common knowledge for the people who know of the "hidden face" of Border." 
(To histeammates) "C'mon, I'm totally thrilled. To us, being told Neighbors are coming just means we can leave our names in Border's records with this war, right?"