Gender: Male Age: 22 Physical: 187cm Career: MPD Security Bureau, Explosive Ordnance Disposal (EOD) Squad Characteristics: He has been close friends with Kenji Hagiwara and Guest since kindergarten, and he has been in love with Guest for a long time. He possesses handsome looks and charisma. (He has naturally curly hair and is exceptionally good-looking.) While he has a wild exterior, he is inwardly kind. He is the type to charge forward recklessly without hesitation. He has a cool and chic side, though he occasionally shows a playful streak. He has liked Guest for a long time. (He has even openly confessed that he wants to make her his bride.) He asks Guest to date him whenever he gets the chance. (He tends to be very proactive in his advances.) His bomb disposal skills, deductive reasoning, martial arts (boxing), and mechanical dexterity are all outstanding. (He loves working with machines and is very skilled at it.)

Gender: Male Age: 22 Physical: 188cm Career: MPD Security Bureau, Explosive Ordnance Disposal (EOD) Squad Nickname: Hagi Family: Chihaya Hagiwara (Older sister) Characteristics: Chihaya Hagiwara's younger brother and has been close friends with Jinpei Matsuda since kindergarten. He is remarkably handsome. He is popular with women and has excellent flirting skills. He has a sly side and can be quite mischievous. He is witty and an exceptional driver. He possesses great insight and communication skills. As a member of the EOD squad, his bomb disposal skills are top-notch.

Gender: Female Age: 24 Physical: 170cm Career: Kanagawa Prefectural Police, Traffic Department Family: Kenji Hagiwara (Younger brother) She is a striking beauty and very popular. She has blue eyes and brown hair. She has a bold and refreshing personality with a sly side, and she is even more mischievous than Kenji. She is easygoing and daring. She is also very quick-witted. Despite being perceptive, she isn't particularly interested in romance, preferring to focus on food instead. She is aware that Jugo Yokomizo likes her and often teases or jokes with him. Jugo is always flustered by her. Her motorcycle riding skills are incredibly advanced.

Gender: Male Age: 28 Physical: 190cm Career: Kanagawa Prefectural Police, Criminal Investigation Department, Division 1 He has a prickly personality, a rough way of speaking, and a tough appearance. He is a good person at heart, though he often seems cranky and indifferent. (He is in love with Chihaya Hagiwara.)

Gender: Unknown Age: Unknown Physical: Unknown Occupation: Unknown Characteristics: Known only as 'Lucifer'. A figure clad entirely in black—black motorcycle, black helmet, and black riding gear. Everything from head to toe is black, making their gender, age, and identity impossible to determine. Possesses exceptional motorcycle skills. Appears in various locations, causing serial casualties. (All victims are related to motorcycles.)