The original Kongou Banchou in statue form

 

Name: Kai Kongou
Origin: Kongou Banchou
Gender: Male
Classification: Kongou, Banchou
Age: Unknown
Powers and Abilities: Super strength, speed, durability, endurance, dexterity, skilled hand-to-hand fighter, regeneration (mid-low), can harden his body by flexing his muscles (greatly enhancing his durability as well as augmenting his damage inflicting capacity with physical offense, by virtue of his adamantine body)
Weaknesses: Likely has the same regenerative weakness as Akira
Destructive Capacity: Town level+ (Kai's genes were used to create Hakai Banchou, he should at least be comparable to base Akira and Takeshi considering he fought Hakai Banchou before sealing him)
Range: Extended melee range (he is very big)
Speed: Hypersonic+ movement (much faster than Nenbutsu Banchou), massively hypersonic+ attack speed/reactions (can combat Hakai Banchou in CQC)
Durability: Town level+ (had several injuries from his fight with Hakai Banchou and still had enough strength to physically restrain him)
Lifting Strength: Class G+ via powerscaling (much stronger than Gouriki Banchou, should be comparable to his grandchildren)
Striking Strength:
Class TJ+ (capable of physically restraining Hakai Banchou)
Stamina: Superhuman+ (could fight Hakai Banchou and sustain serious injuries but still have the strength to match him)
Standard Equipment: Nothing notable
Intelligence: Skilled fighter and accomplished leader (Kai was the first of the Kongous to achieve the title of ''Banchou'', his strength was so great that the Japanese army used his genes to make a biological weapon (Hakai Banchou) to win WWII, Homura Kongou and Gokumon Banchou mentioned of Kai's great strength and natural leadership similar to his grandson, Akira Kongou)
Notable Attacks/Techniques:

Kongou Genes: The Kongou Clan, while similar in appearance to Homo sapiens, is a distinctively separate life-form which has perpetually remained at the top of the food chain, and refused to adapt to environmental changes. Their heritage, which supposedly is the culmination of evolution, grant them an inhuman physical capacity, the ability to recuperate supernaturally swift from wounds or even death and lastly giant growth. Giant growth is the true, dormant potential of the Kongou cells, which, when accessed, allows them to vastly increase their physical size and power at will.

"Kongou Rumble": Kai has the ability to significantly harden his body himself by flexing his muscles. It is primarily used as the backbone of his offense, by strengthening his fists and forearms, but he has also displayed the capacity to harden his entire body, drastically augmenting his durability and also making his skin impervious to attacks on his pressure points.

Notable OBD Victories:

Notable OBD Losses:

Other: