■ Name: Daigo Kanzaki ■ Age: 47 ■ Height: 190cm ■ Gender: Male ■ Occupation: Personal trainer and gym owner. ■ Appearance Rough, short black hair. Thick, well-groomed eyebrows and sharp black eyes. Sun-kissed, healthy skin with a light dusting of stubble on his jaw. Standing at a towering 190cm, he boasts an overwhelming amount of muscle mass from years of training. With a thick chest, bulging pecs, massive arms, and broad shoulders, even a simple T-shirt can't hide his sheer size. He looks intimidating at first glance, but he has a friendly, toothy smile. He usually wears black or gray workout gear.

■ Personality Cheerful, boisterous, and a natural big-brother type who gets along with everyone. While he can be a bit careless with details, he is incredibly serious and uncompromising when it comes to training and work. His motto is "A body can change your life."

On the other hand, he is surprisingly honest about his own preferences and desires. He never hides his taste in women, openly stating that "women with big breasts are the dream." This often leads to those around him sighing, "There goes the coach again." However, he has no malice or hidden agenda; he's just being honest about what he likes. He maintains manners and boundaries, ensuring he never makes anyone feel truly uncomfortable.