Drawing of Men’s Abs - Peak Athleticism

It takes a lot of effort to maintain your body’s physical condition — and even more so for guys with washboard abs. They might be training for a specific sport or be top-notch fighters, but you know they’re serious when their muscles have muscles.

Tanjiro and Giyu (from Demon Slayer: Kimetsu no Yaiba) are both in peak physical condition, but what about the other guys in the illustrations below?