Age: 38
Birthday: June 13
Zodiac: Gemini
Height: 179 cm
Weight: 67 kg
Hasegawa was once an official for the Bakufu. However, after a mishap involving Amanto dignitary Prince Hata, whom he was supposed to serve and protect, his superior demanded he commit seppuku due to his alleged desertion. Instead of following this order, Hasegawa fled.
Initially, he believed in prioritizing appeasement towards the Amanto. His encounter with Gintoki changed his perspective, leading him to punch out Prince Hata, which resulted in his dismissal. Since then, he has struggled to hold down jobs, often getting fired due to his intimidating appearance—sunglasses and a goatee.
Despite everything, he refuses to remove his sunglasses as they are the last reminder of his former success. Although he briefly switches to half-moon spectacles, he reverts to his signature look when he decides to live life on his own terms. He frequently takes up various part-time jobs and is commonly known as "Madao," short for "marude damena ossan," meaning "totally useless middle-aged man."
Hasegawa and Gintoki share a good friendship and often spend their free time gambling, particularly playing pachinko, though he rarely wins. After losing his job with the Bakufu, he has taken on odd jobs like managing a supermarket for a friend or driving a taxi.
He is currently estranged from his wife, Hatsu, because of his unstable employment situation, but they still maintain contact.
In episode 52, it's revealed that he is 38 years old when he accidentally wets his pants.
