Lunar autumn night, a soft knock on the window. Strange… Is the branch knocking? The sound is repeated. There is a feeling that there is someone outside the window, and he really wants to get inside. But this is the fifth floor… You close the book you’ve been reading and walk up to the window, boldly pushing back the curtain, and immediately recoil from it. A charming young man sitting on the windowsill is looking at you from the closed window.

“Hello. It’s cold out here, may I come in?”