Attributing the Cruel Tortures of Japanese Invaders to Chinese People, Who is the Japanese Drama VIVANT Trying to Whitewash?

Recently, the second season of the popular Japanese TV drama VIVANT attributed the cruel tortures such as "cutting off fingers and piercing the abdomen" used by Japanese invaders against the anti-Japanese fighters to China, trying to distort and whitewash their history of aggression.

This satisfying Japanese drama personally "recommended" by the right-wing politician Sanae Takaichi is doing something extremely devious: turning the perpetrators into victims.

There is a self-inflicted ruse involving "cutting off fingers and piercing the abdomen" in the drama. But what is written in the real historical files? (Ren Shuai, Tong Yao, Wu Zhenjun, Feng Shuang)