TV-Series
Description
Natsusa Yuzuki sports orange-to-peach ear-length hair and vibrant green eyes, accentuated by delicate facial features. His physique shifted from muscular to slim after a motorcycle accident caused muscle loss during recovery. He favors a white hoodie with green cat-eye designs, blue pants, and black boots. A cervical hernia from his injury reddens visibly when his body temperature rises—triggered by alcohol, hot baths, or similar environments.

Originally a promising left wing rugby player at Doshisha University, his career ended abruptly when a cervical herniated disk (likely radiculopathy) resulted from that accident as Ibuki Ueoka’s passenger. Six months of hospitalization forced him to repeat his first year, placing him alongside juniors Yuu Mashiro and Yasunari Tsuru. Unable to play, he became team manager despite early fumbles like forgetting bottle washes, mishandling towels, or improperly diluting Ibuki’s sports drinks.

His enduring love for rugby fuels his managerial role, which he acknowledges might seem "pathetic" yet prioritizes over self-pity; he believes dwelling on his condition would place self-love above his sport. Though popular—teammates visit en masse during relapses—he reveals a sadistic streak, bullying Ibuki specifically. He strategically flatters seniors with phrases like "Huh? Really?!" or "You sure know your stuff" for influence. Childhood friend Seiichirou Shingyouji’s pacifism frustrates him during disputes. Beneath a sweet exterior simmers stubbornness and sass.

As manager, he adapts by identifying Yuu Mashiro’s stress-induced gastric ulcer and questioning Yuu’s rugby passion before recruiting him as co-manager. He actively strengthens the team, relentlessly urging former ace stand-off Ibuki Ueoka to rejoin and driving their quest for the Kansai University Rugby League nationals.

Key dynamics include a trauma-bonded, bullying-laced relationship with Ibuki; a strained lifelong friendship with overprotective Seiichirou; resentment from Yasunari Tsuru, who replaced him at left wing and finds him grating; and admiration from devoted follower Yuu Mashiro.

His name blends "summer" (夏, natsu) and "thread, silk" (紗, sa) for Natsusa, with Yuzuki combining "grapefruit" (柚, yuzu) and "tree" (木, ki). Additional trivia notes his Virgo sign, left-handedness, and main character status.