Exactly
The wakizashi is a weapon. And it will serve you well pushing back the invading Mongols. Historical and conventional weapons may break or otherwise fail you, defending yourself against these Mongolians*, but the K20 has a combination of durability and exceptional cutting capacity that will help you destroy these invaders. And also help you clean up trash sprouting up in your garden with little more than the flick of a wrist. I particularly like cutting the poke berries.
*No offense to any Mongolians present
Also, f*ck those pokeberries
also also, the bleeding has stopped