- Oh, yes. He'll live to regret what he has done.
- I am sure.

6 seconds sound clip from the Duel to the Death movie soundboard.

You can hear this line at 00:50:29 in the Blu-ray version of the movie.

Quote context

[...]

- I heard you were attacked at the graveyard. I am so sorry.

- It's very strange. I wonder how they knew we'd be there.

- My father is investigating it.

- I'm sure he'll catch them.

- We've tightened the security around the school grounds. I'm sure there won't be any more incidents like that.

- Whoever he was, well, you ought to teach him a lesson.

- Oh, yes. He'll live to regret what he has done.

- I am sure.

- You know the first time I met you, you amazed me. I couldn't believe anyone would look so delicate, yet fight so well.

- You saw through my disguise. Was it really so obvious?

- Of course. You move with such grace.

- I'm glad you noticed me.

[...]