Hayato Honda is a motorcycle police officer in the Katsushika force. He presents as a tall, slightly skinny young man sporting a distinctive black pompadour hairstyle retained from his biker gang past. His posture often features clenched fists held beneath his chin, elbows outward, knees together, and feet pointed inward, contributing to a shy, timid demeanor. His standard patrol uniform includes long blue pants with red stripes, a blue long-sleeved protective coat worn with sleeves rolled up, a white undershirt, a yellow neckerchief, and long black motorcycle boots. A white utility belt holds gloves he rarely wears. Honda possesses a significant split personality activated by riding a motorcycle. Normally, he is modest, sensitive, shy, and prone to tears from emotionally moving or traumatic events, a sensitivity partly stemming from over 180 failed attempts at finding a girlfriend before his current relationship. He exhibits effeminate mannerisms, enjoys shojo manga, follows J-pop and K-pop idols, engages in cosplay, and has skills in cooking and drawing. His fears include the dark, dogs, snakes, and ghosts. However, mounting a motorcycle triggers a dramatic transformation: his face becomes intimidating, his voice deepens, his speech turns vulgar and rough, and he becomes fearless and ruthless towards criminals. This persona showcases exceptional motorcycle expertise honed during his former biker gang leadership, enabling numerous arrests, sometimes involving jumping onto cars during pursuits. This split personality is a family trait, also affecting his father, younger sister, and younger brother under specific conditions. Within the police force, Honda frequently interacts with Kankichi Ryotsu. Honda often reluctantly joins Ryotsu's money-making schemes despite initial resistance, typically sharing partial blame when they fail. Ryotsu relies on Honda for motorcycle transport during urgent situations. In his normal state, Honda addresses Ryotsu as "senpai," switching to "Ryotsu no Danna" while in his intimidating motorcycle persona. Despite the trouble from Ryotsu's schemes, the two maintain a cordial friendship, often seen together on and off duty. Honda's family includes his father, Kaizou Honda, who operates the Honda Ringyo motorcycle maintenance workshop. Father and son clash over preferred motorcycle brands (Kawasaki for Kaizou versus Honda for Hayato), though this doesn't severely damage their relationship. Kaizou also transforms into a more aggressive individual when wearing mechanic's coveralls. Honda is hyperprotective of his younger sister, Eve, who shares his fragile and shy disposition, reacting strongly to news of her marriage plans. Eve possesses her own split personality, becoming violent when riding elephants, causing Honda to flee from her in that state. Honda frequently quarrels with his younger brother, Kadoki (nicknamed 'Monkey'), who favors bicycles over motorcycles. Their disagreements sometimes lead to physical altercations where Honda suffers injuries. Kadoki also transforms when riding bicycles, though Honda outperforms him in speed during chases. A significant personal development is Honda's relationship with Nana Otohime (Nana-chan), a subordinate in the Katsushika HQ Transport Division. After developing a crush, he successfully confessed his feelings with Ryotsu's assistance, making Nana his first true girlfriend. They bond over mutual interests, particularly shojo manga, as Nana is a manga author under a pen name. Honda remains happy in her presence while continuing to supervise her professionally. Additional background notes include his birthday on February 29th (a leap year), his greater prominence in the anime adaptation despite debuting in Volume 14 and Episode 10 of the manga, and his surname being a direct reference to the Honda vehicle brand, aligning with his exclusive use of Honda motorcycles on duty. His character arc centers on overcoming romantic failures through his relationship with Nana and managing his dual personas within the police force dynamic.