I knew the Taiwan Immigration Agency hadn't finished tossing me yet! When I entered the customs, it said that I did not book a ticket to leave Taiwan, and I was not allowed to enter. It's because I haven't planned which city to fly out of yet, so I haven't decided yet. At that time, I could only retreat to the back to book the air ticket now. After a long time of tossing, I booked it online. As a result, the staff glanced at the confirmation page on my phone and...