Semiu Grier is a dark‑skinned, glasses‑wearing woman who serves as the receptionist at the cleaners’ headquarters in Gachiakuta, using her eye‑type human tool “Eyes” to read the abilities and inner hearts of others while managing monster‑hunting requests.
Semiu Grier is a human tool user (Giver) who works at the front desk of the cleaners’ main office.
She handles visitor screening, request management, and even defense of the office when troublemakers attack.
Although she is actually one of the more skilled fighters among the cleaners, her ability is specialized in “seeing” rather than directly slaying monsters.
Because of this, and because she always admired the office‑girl role, she chose to work as a receptionist instead of a frontline hunter.
Full Name: Semiu Grier
Affiliation: Cleaners – “Front” (Reception / Headquarters)
Age: 26
Height: 175 cm (plus 8 cm heels)
Birthday: October 3
Favorite Things: Coffee, adult magazines, punishing people who disrespect her
Dislikes: Overly strong perfume
Voice Actor (CV): Miho Sonozaki
Semiu is a tall, dark‑skinned woman with a cool and composed aura.
She wears glasses, which are actually her human tool “Eyes.”
Her hair is cut in a very short, almost boyish style, giving her a sharp and professional look.
When she first joined the cleaners, however, she had long hair before switching to her current short style.
On the surface, Semiu is a calm, efficient, and cool beauty who handles reception work with precision.
She takes her duties seriously, from guiding clients to coordinating missions and backing up Arkha Corvus in dealing with visitors.
Her role is not limited to desk work; when violent troublemakers attack the cleaners’ office, she helps repel them without hesitation.
Despite her polished office‑lady image, she has a mischievous side and enjoys delivering “punishments” to anyone who underestimates or disrespects her.
Privately, Semiu is an avid reader of adult magazines.
When she is exhausted from overwork, she jokingly calls reading them her “nutritional supplement” to recharge her energy.
Semiu is a Giver, and her human tool is a pair of glasses named “Eyes.”
By activating Eyes, she vastly amplifies her dynamic vision to superhuman levels, allowing her to track movements and read attacks with extreme precision.
Her ability is not limited to physical sight.
When she concentrates, she can “see” the other person’s physical potential, combat capability, and even the state of their heart and inner feelings.
Thanks to this, she excels in interpersonal combat, predicting and countering human opponents rather than wild monsters.
However, because her specialty lies in reading and analyzing rather than direct destructive power, her ability is not ideal for fighting the monstrous “spot beasts,” which is one reason she focuses on reception work instead.
At headquarters, Semiu is essentially the face of the cleaners’ organization.
She checks and vets everyone who visits, ensuring no suspicious person slips through.
She processes monster extermination requests that come in from various regions and assigns them to appropriate cleaners.
Together with Arkha Corvus, she coordinates visitor handling, internal communication, and the flow of requests.
When rowdy attackers or criminal elements target the cleaners’ base, Semiu drops the receptionist act and becomes part of the first line of defense.
Her Eyes ability makes her especially dangerous in close quarters, where she can read enemy movements and shut them down quickly.
Work: Gachiakuta
Organization: The Cleaners (main headquarters, front desk)
Associated Character: Arkha Corvus (coworker at reception)
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