This place is very clean. Aki is a very careful person. Our flight was delayed and we arrived at her place at 10:30pm. She waited for us to check in and went through all the regulations in person.
This place has 3 rooms doing Airbnb and our room was a typical Japanese sliding door room with no lock. However, we did not find any problem with this.
The only problem we found is needed to be careful using the shower. The shower room is located inside the changing room (with sink), the shower room has a lock, the changing room doesn’t. So, need to be careful in case if someone comes in randomly.