As corridor allows choke point for 1 person to defend against multiple invaders, I practice in corridor with my 4.75 lbs sword in test cut and solo drills, to get used to the confined space.

https://youtu.be/q1jnKOIQIfg
Test cut

https://youtu.be/4JsD8Dl6RYQ
Drills with different techniques.

https://youtu.be/hm_o3Uawd8g
Drills with footwork.