Tokiyuki spends his days undergoing strenuous training to perfect his sword techniques – something he’s told to do to take back Kamakura for himself. 
However, everyone was surprised by how weak his swordsmanship was. It turns out that Tokiyuki was much better with another weapon: the bow.
What are running-away muscles?

‫ما هي عضلات الهروب؟
Vous allez le décourager !
Cosa sarebbero i muscoli della fuga?
O que é músculo de fuga?!
Это что за мышцы такие?!