The real-life Hirofumi Yoshida is an internationally acclaimed Japanese conductor specializing in Italian opera.

: Yoshida is often seen with a playful, mischievous smile, but he is fundamentally stoic and efficient. Fans frequently discuss his "enigmatic charm" and debate his true allegiances, with some theories even linking him to the Death Devil . 2. Hirofumi Yoshida (Orchestra Conductor)

: He is characterized by his tall, muscular build, messy black hair, multiple ear piercings, and a distinctive mole near his mouth.

: He has served as the Principal Guest Conductor at the Bologna Opera House and the Odesa National Academic Opera and Ballet Theater. He is also a designated professor at the Toho College of Music.

In the universe of , Hirofumi Yoshida is an enigmatic high school student and a high-class Devil Hunter. He is best known for his contract with the Octopus Devil , which allows him to summon powerful tentacles for combat, surveillance, and creating ink-based smokescreens.