TV-Series
Description
Jack Chi, known in Japanese as Jakku Chi, is a character from the Perfect Origin Arc of the Kinnikuman series. His name is a pun on the Japanese word for faucet, jaguchi, a theme that directly defines his appearance and abilities. He is a member of the Perfect Large Numbers, a faction of Perfect Chojin, or "perfect beings," who adhere to a brutal philosophy: defeat in combat must be met with death, and any form of weakness or imperfection must be eliminated. Jack Chi embodies this creed with unwavering loyalty.

Physically, Jack Chi is a tall and heavy humanoid Chojin, with his body integrated with industrial faucet structures that encase parts of his arms, shoulders, and chest. He typically wears pants and leaves his torso partially exposed, while a helmet obscures most of his face, leaving only his nose and mouth visible. His homeland is Italy on Earth.

In terms of personality, Jack Chi is a calculating and sadistic combatant. He employs psychological manipulation and taunts his opponents, taking apparent pleasure in inflicting prolonged suffering, often through the use of scalding water. However, his actions are also governed by a strict, albeit twisted, code of honor that reflects his faction's doctrines. This commitment to his principles is absolute, leading him to accept fatal consequences without hesitation.

Jack Chi's primary motivation is to uphold the ideals of the Perfect Chojin and defeat their enemies, the Seigi Chojin (Justice Chojin) and the Akuma Chojin (Devil Chojin). He arrives on Earth as part of a second group of Perfect Chojin led by Nemesis, quickly demonstrating his aggressive nature by taunting the hero Geronimo and engaging him in combat. Following the initial skirmishes, Jack Chi participates in a tournament held on a seven-stepped pyramid. His assigned opponent in this tournament is the Devil Chojin, Black Hole, marking his most significant role in the story.

The battle against Black Hole is the central event defining his character arc. To counter Black Hole's ability to hide and move within shadows, Jack Chi uses his powers to create a steam geyser, effectively eliminating all shadows in the arena and forcing his opponent into direct confrontation. Throughout the fight, Jack Chi demonstrates his combat prowess and his sadistic streak, dominating his foe through physical attacks and psychological torment. However, the tide turns when Black Hole transforms into his stronger form, Pentagon. Overwhelmed by Pentagon's power, Jack Chi is ultimately defeated and rendered unconscious. True to the code of the Perfect Chojin, he accepts his defeat absolutely. After regaining consciousness, Jack Chi commits suicide by standing atop the geyser he created, allowing the pressurized water and steam to fatally rupture his body. His final act is consistent with his faction's belief that a defeated warrior is an imperfection that must be eradicated. This battle is his only documented major engagement.

Jack Chi possesses a variety of unique abilities that utilize his faucet-like body. His primary techniques involve manipulating water. The Boiling Shot allows him to fire jets of scalding water from his wrists, which can inflict severe burns or be used to propel himself. He also has a Coolant Shot for bursts of chilled water. His Dowsing Eye grants him the ability to locate hidden opponents by sensing underground water veins. For close-quarters combat, he can transform an arm into a Dowsing Drill to pierce opponents or the ground. His signature maneuver, the Faucet Crusher, uses the propulsion from a Boiling Shot to drive an opponent into a devastating modified Death Valley Driver.