@Aurélien4 Airbnb really isn't just a way for you to earn money while your place is vacant. Hosting has a lot of aspects to it to be successful. It's a job, not a make-money-easy scheme. I wouldn't advise you to do this.
I assume your personal things would be left in the apartment while you are only gone for 9 days. What if a guest throws a rager party and trashes your place? What if they steal or damage your stuff?
Airbnb cannot be relied on at all to back you up or reimburse you in those scenarios. Their "host guarantee" is a PR joke.