Unlocking the entrance door of terrace type housing with smoke guard, without door scope

"Unlocking the entrance door by non-carrying a key"

In Chigasaki, there are many apartments with this terrace type.

It was a declaration that there was no post and door scope view, but the parent-child door was equipped with a post. I could see the post right next to it.

The cylinder was WEST917 type, but the lock set is unknown.

Is the long seat type with this design made by MIWA or WEST? However, the thickness of the long seat is about 10 mm, and the back set is 51 mm. This makes bypass unlocking difficult.

It may be possible to approach from the next post. When I presented the method and the estimate, it was canceled without being accepted. They are waiting for their master to return.