Because it's to show you the power of this sword, she didn't use any killing moves. She just tried to use some moves that looked full of momentum, but there was no hurting moves.

to put it bluntly, it's to show you the spirit sword in your hand.

with her personal demonstration of the 20th place in the martial arts competition, all aspects of the quality of this spirit sword are exposed in everyone's eyes. When everyone sees this sword, they can see it. This sword is very good and of high quality.

"it's not bad. Only the 20th place, you can have such good things, ah! I'm so sad....