Vent is one of the two main, playable characters in Mega Man ZX, who work for Girouette's Giro Express. His female counterpart is Aile, who has a similar story in the first game, but differing one in the second game, Mega Man ZX Advent. He appears to be between 11 and 15 years old in Mega Man ZX and is 18 years old in Mega Man ZX Advent.


In Mega Man ZX, his attitude is quite kind and determined, but also reckless, hot-headed, and easily volatile. Because of his disposition, he got in trouble more often than not (such as his rapid change in attitude when someone talks about Slither Inc. or when he attacks Prometheus). He also possesses a desire to protect those around him, due to losing his mother right in front of his eyes, always saying, "I'll protect everyone!" or "Give me the power to protect everything!" He had a deep bond with and respect for Giro, calling him "boss" ("Senpai" in the Japanese version), having a sort of mentor-student relationship with him. According to Giro, he was a pain; having grown up as a lonely child, Vent seems to be always rude to the clients. When he is angry, Vent tends to be reckless, such as the time when he launched himself into battle to save the Guardians and Prairie, and at the same time merciless to some point (as is evident when he tells Purprill that, "Now there's nothing stopping me from taking you out!" after learning the latter's role in his losing his parents.); despite this, however, Vent tends to control his actions and ends up maturing with each battle.

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