Grevil de Blois  

Pointy Head, グレヴィール・ド・ブロワ

Grevil is an aristocrat who has become a detective due to his interest in crime, despite being terrible at it. His distinctive drill-like hairstyle resembles a deadly weapon. Although he often relies on Victorique to solve crimes, he refuses to acknowledge her existence. When he visits the library, he discusses with Kazuya a case that bothers him, hoping it will help clarify his thoughts. Despite Kazuya's suggestion to tell Victorique about the case, Grevil ignores it. Victorique advises Kazuya not to pay attention if Grevil speaks to himself, as he is her half-brother and they cannot acknowledge each other in public due to their father's proper wife being their mother. Grevil is described by Victorique as a heel and a playboy, taking all the credit for solving crimes and expected to inherit after their father dies as the eldest son.