Iaido has a pretty stocky build (I'm pretty envious!). His swordplay requires a certain amount of strength and physical exertion after all!
Did you know? His sword and scabbard are a metaphor to a Japanese legend. The Sun Goddess Amaterasu once hid in the cave Iwayado, which plunged the world into darkness.
It's a pretty mysterious weapon that has been in his family for generations upon generations. I wonder what sort of secrets it has?