It’s not really explained here (or just badly translated) but in the WN the skill Knight Armour Mastery makes “knight armour” (I think basically full-plate armour) weightless, and the skill Indomitable Knight Armour Mastery doubles your speed when wearing “knight armour”.
So when are we getting a cunny? We have a petite girl but i demand a real cunny, like the mc did say that he will fuck anyone so will we perhaps get the rarest girl of them all, the illegal cunny????