A story that begins because of snow is destined to end because of snow.
Tan Sheng, the eldest daughter of an aristocratic family, went astray because she had not seen much of the world, and left the south to the north, which was destined to make her uncomfortable for the rest of her life. She had been chasing snowflakes for half her life, and in the end she didn't know whether it was the snow or the knot in her heart that trapped her.
Song Cheng, both sent and presented, seems to have been wandering for half his life. Unlike a human being, snow is his nightmare and the knot that unties his nightmare. He spent half his life but retained nothing.
Purpose: Don't be too obsessed, freedom is always important