There is a small town called Fog Light Town by the sea.
The town holds a "Fog Light Festival" every year. Legend has it that on this night, living people can write letters to the dead and put the letters in the red mailbox under the old lighthouse.
The next day, the letter will disappear.
Some people say that dead people really do write back.
Ten years after the heroine Xu Nanxing left Fogdeng Town, she was forced to return to the town because her grandmother suddenly disappeared. She originally just wanted to deal with the old house and post office left by her grandmother, but she found a letter addressed to herself in the post office.
The sender on the envelope is her long-dead mother.
There is only one sentence in the letter:
Nanxing, don't believe what the town says about the fire.
