Male lead Hei Tian Yi is a police officer, who died in the line of duty in 2014. 2 years later, his fiancee Yuan Xiao Jia, not wanting to stay in the city full of memories with him, decided to move, and when packing, found Tian Yi's old cellphone. On a dark night, this cellphone, with no SIM card in it, received a message...

A collection of characters kissing one another on a whim.