Who can k o this man ?
He's Akira , known for having the most resilient abs on earth .
Many professional boxers and strongmen have challenged him , but none have succeeded .
This abs monster claims that if anyone can make him show a pained expression , they'll win the challenge .
Today , another professional boxer , Yasuhiro , the K-1 League 70 kilograms champion , steps up to challenge Akira .
Yasuhiro's kicks are powerful .
He even KO'd Shaolin Monkey Lung .
1st , an ordinary person tried a punch , and from his expression , it was clear it was a heavy hit .
Then the main event , Yasuhiro started with the same turning punch .
The hero's face remained unchanged .
He even took a bite of banana .
Next , Yasuhiro switched to kicks , but still no effect .
As a last resort , he used his final move , a series of kicks .
The whip leg that lasted for 20 seconds still did not change the result , and the challenge failed .