Alpha Corvus is the enigmatic and respected leader of the Cleaners, the organization dedicated to exterminating monstrous beasts born from trash in the world of Gachiakuta. He is a tall, slightly muscular man with dark skin and a commanding presence. His appearance is distinctive: he has wild black hair styled into multiple locks, grey eyes, and silver earrings. His attire consists of a black bodysuit worn under a yellow tank top with a zipper, over which he wears overlapping belts bearing the Cleaners' logo. He also wears baggy navy blue pants, a pair of small white gloves, and drapes his Cleaners jacket over his shoulders. The most unusual feature of his appearance is a light grey eye tattoo on the back of his head, which is capable of moving on its own.

In terms of personality, Corvus is described as capricious and is often absent from the Cleaners' headquarters, contributing to his mysterious aura. Despite this, he is deeply loyal and is held in high regard and respected by all the members of the organization. He is a man of few words but is seen as reliable, trustworthy, and charismatic, always having the best interests of his people at heart. He possesses a calm demeanor and a strategic mind, making him an effective, if unconventional, leader.

Corvus's primary role in the story is as the boss of the Cleaners, a figure of authority who guides the organization from behind the scenes. He makes his first formal appearance to thank Rudo for protecting the lives of his comrades and to officially welcome him into the Cleaners. During this meeting, Corvus provides Rudo with crucial information about the world, explaining the existence of a deadly border between the Sphere and the Ground. He shares a rumor about a mysterious woman in No Man's Land who has witnessed people crossing this border without dying, giving Rudo a new lead in his quest to return to the Sphere. This act demonstrates that Corvus is not only a leader but also a source of cryptic and vital knowledge that drives the protagonist forward. He also takes a personal interest in Rudo, and a private conversation with him inspires Rudo to fully embrace his identity as a Cleaner and to seek out the world's hidden truths.

His key relationships are primarily defined by his role as the boss. He is the superior to all Cleaners, including Enjin, the leader of Team Akuta, who openly acknowledges his leadership. His relationship with Rudo is particularly significant, as he immediately places his faith in the newcomer, trusting his companions' judgment and officially integrating Rudo into the organization. While he is respected and admired, there remains a sense of distance and mystery around him, as even his closest subordinates do not know the full extent of his abilities.

Regarding his development, Corvus remains a largely enigmatic figure whose past and true motivations are not fully explored in the available information. His most notable development is the gradual revelation of his role as a mentor and guide to Rudo, steering the protagonist toward a larger understanding of their world. One of the most intriguing aspects of the character is his ability. As a Giver, Corvus possesses a Vital Instrument, but its nature and function are a closely guarded secret. None of the other Cleaners have ever seen his Vital Instrument, making it a complete mystery. Some hints suggest it may grant him some form of foresight or heightened perceptive ability, but this remains unconfirmed. This lack of knowledge about his power adds significantly to his overall aura of mystery and authority within the series.