I saw Jun.K on Kim Jong-kook's YouTube channel.
Wow.. the original beast class is still the same
45 minutes of cardio, 3 minutes of running, 2 minutes of walking, 13 km/h...
It's a breathtaking routine just to hear about, but you do it for 9 sets.
I saw that they thoroughly divided the weights into back, chest, and lower body.
Ah.. I realized that abs don't just appear.
