Answer:
because if there is no setting the story will not have the same flow like a regular story
Explanation:
1. If I (wasn't) lazy, I wouldn't have failed the exam.
2. If you phone me, I'll (come) to you.
3. If you spend this, ( you'll) be a poor man.
4. It (will) be better if they didn't come
5. Anita (would've) come if he had invited her.
6.
What story is it? But I think it fits as a great side character