Asakura Ye returned to the house and opened an ordinary aluminum-platinum box that no one would notice. It was the leftovers from Beibei's biscuits. There are many postcards in it, with different dates, but they are all stamped with the postmark of Iraq-Japan.
He quietly closed the lid and placed it where no one but himself would notice it.
It was a secret between her and him, a secret about a person.