Upa

Samon Gokuu is the Warden of Nanba Prison's 5th Ward. He is ambitious, energetic, hot-tempered, and cocky. He subjects his prisoners to daily training and considers his ward to be the most disciplined.
Liang/#02 - Upa's cellmate. Liang is initially quite cold and irritable, easily provoked. He is stern and unfriendly. However, after his defeat by Rock at the New Year's tournament, he softens somewhat and acquires a warmer, friendlier temperament, showing kindness and trust to those he doesn't know well. He is a master of martial arts.
Qi/No. 71 is a man prone to recklessness, bordering on extreme laziness and frivolity. Despite his frivolous nature, he is a kind man, deeply compassionate towards his fellow inmates. He pretended to betray them in the hopes of protecting them, which, according to Upa, indicates his recklessness, lack of self-preservation, and disregard for the wishes of others. Like Upa and Liang, Qi greatly values ​​Ward 5 and wants to start over there. He is a brilliant pharmacist.

Upa was born in China to a family that specialized in qigong techniques. Even within his clan, he was considered exceptionally strong, so much so that the rest of his family revered him as a special person.
However, one day, he was kidnapped by Hachiman's mafia, who forced his family to produce a fake corpse to make it appear he was dead. Upa's organs were sold on the black market for large sums of money, leading to his serious illness and weakening. He attempted to work for Hachiman in hopes of buying them back, putting his body under immense stress. Although he regularly received Qi's medication, his health deteriorated faster than he could earn money, and most of his employees were convinced he would soon die. Knowing this, Qi eventually donated some of his organs to Upa, allowing him to regain his health.
Eventually, the mafia was disbanded due to the betrayal of its members, and Upa was sent along with the others to Shisen Prison in China. There, he lived in fear of Enki Gokuu's brutal treatment of prisoners and, unknowingly, was placed on the prison register for organ trafficking. In this prison, he met Samon Gokuu, who helped him reconnect with his family; these actions earned Upa respect for the officer. At an unspecified point in time, he was transferred to Nanba Prison along with Qi and Liang, where he began training under the guidance of
Samona

Upa is a rather serious man with a calm exterior, rarely showing emotion. Like many residents of Building 5, he is proud and very confident in his abilities—he openly considers himself a "gifted master" of qigong and refuses to share his techniques with those he considers insufficiently talented, sometimes displaying arrogance. He is quite ambitious, putting his goals above all else and refusing to yield to anyone. In keeping with his proud nature, he reluctantly admits his inability to complete a task and is intolerant of defeat; if he does, he will instantly fly into a rage, displaying a childish temperament that contrasts with his generally mature personality.
Upa, a man willing to work hard to achieve his goals, has little tolerance for lazy and frivolous people and is very impatient with them. He can be very blunt and often harsh towards such people, frequently calling his cellmate Qi "scum" or "trash"; at times, he can be downright rude not only to other inmates but even to the prison guards. Despite this often cold and harsh attitude, Upa has proven himself capable of compassion and concern for others, as shown when he put Niko's safety above his own during the battle with Hachiman.

Upa is thin and noticeably short, so much so that he could easily be mistaken for a child. He has fair skin and gray eyes, outlined with gray makeup. His hair is turquoise, with side-swept bangs and curled strands at the base that curl toward his neck. He has red tattoos of angular spirals on his body: one on each cheek and rows above and below each elbow and knee. He also has a noticeable, stitched-up scar on the right side of his abdomen.
Upa is wearing a dark blue, short-sleeved prison jumpsuit, fastened at the collar with a red ribbon. He also wears a blue and red Chinese cap, attached to which is a yellow talisman hanging over his face, and the characters for his identification number written in red. He wears simple black shoes, and his identification badge is pinned to his left chest.
Height - 136 cm
Weight - 36 kg
Gender - male
Age - about 15 years
Ethnicity - Chinese