Muscles, attached to the skeleton above, support the human body, provide strength, and protect bones and organs.
Boxing technique... or any sport, for that matter, cannot do without the use of muscles.
Being able to consciously exert certain muscles or groups of muscles is considered the beginning of mastery.
As someone who received a modern education and practiced martial arts for many years, Lu Xuanyu is particularly sensitive to the lines of muscles.
And now, he saw something "similar" on a prosthetic body.
It is not exactly the same but can only be described as "very similar." However, this approximation, so different from the human body's structure, exuded a demonic charm in Lu Xuanyu's eyes.