@Takemasa0
Please note the community for Japanese language is: Community Center Japanese
Google translates:
"Even if you post to the help center, you will receive an answer only with the help bot. There is no solution. I would like to talk to the person in charge over the phone. Since I live overseas, I cannot connect to Japanese customer support (0800-100-1008). "
You need to discard the bots and continue until arriving in a chat session (or see a list of phone numbers, but useally only displayed for emergency cases).
https://all-about-airbnb.com/post/142351825041/how-to-contact-airbnb-customer-support-via-email