[maxgashkov]

This is not about enjoying or not enjoying jail. If you happen to live and work in Japan in a typical job, getting arrested and held within this process for 23 days almost certainly means you're getting fired because you essentially have no contact with the outside world and even if you manage to sneak a word out through your lawyer, most of the employment contracts have clauses to extent of automatic termination for both missing enough days and breaking moral character.

So even if the prosecution decides to drop your case, you're already fucked -- this is not how proper justice system should work.