Yūichi Kurosawa, a charismatic sales department salaryman at Toyokawa, balances professional competence with widespread workplace popularity. His childhood aptitude for drawing attention through appearance and social ease later clashes with career challenges, including superiors dismissing his talents as surface-level. A turning point arises during a work gathering where alcohol-fueled criticism prompts him to seek solace in Adachi, igniting a romantic awakening that gradually intensifies.

Naturally people-focused, Kurosawa extends kindness and support selflessly, maintaining an optimistic view of others while privately nurturing tender—and at times fervent—feelings toward Adachi. His polished demeanor pairs light chestnut hair and sage-green eyes with tailored business suits in muted blues, while off-duty choices favor collared shirts accentuating a gym-maintained physique.

Subtle gestures—offering his scarf, inviting Adachi to stay during rain—reflect his earnest care, evolving from unrequited longing to mutual devotion. Discovering Adachi can hear his thoughts initially flusters him, yet he steadfastly builds trust, their bond deepening into marriage and shared domesticity. Kurosawa shifts from pursuing romantic perfection to valuing raw emotional intimacy.

Family ties include an older sister, Mari, and professional friction with a boss he perceives as overburdening Adachi. Personal trivia reveals an aversion to spicy dishes, past relationships with women, enthusiasm for the *Zombie Dead* manga, and AB blood type. His narrative arc traces vulnerability masked by charm transforming into heartfelt authenticity, achieved through patient growth alongside Adachi.