분골쇄신粉骨碎身 (가루 분, 뼈 골, 부술 쇄, 몸 신)
bungolswaesin
EN분골 (making powder from bones) + 쇄신 (the body is broken) = to be working so hard you are breaking your bones
Avansadu / 고급
bungolswaesin
EN분골 (making powder from bones) + 쇄신 (the body is broken) = to be working so hard you are breaking your bones