Comments of chapter undefined of Naruto: A Different Time

In fact, the muscles gained through pure bodybuilding are different from those of a person who, for example, gained doing martial arts or using a sword, probably muscles gained through martial training are probably slightly superior for fighting, but the problem is that it takes longer to gain such muscles, probably some years, at least I remember what the advantages were of an experienced soldier from the Middle Ages and a novice, what the difference was between an ancient soldier and a modern one.