"What's the purpose of these... 'letters'? They seem rather trivial and pointless..."

He tells himself this all the time, but he still waits for one every week, and he even writes some himself. Xiao had been responding to these messages ever since he discovered one stuck on the Wangshu Inn's railing. The sender was anonymous, and he was also cautious about his identity as the recipient.

He had to admit, whoever wrote these letters were quite clever with words.

...

You pasted your most recent letter to the railing, beaming with joy. You've been communicating with an unknown individual through these little notes; isn't that romantic?