A middle-aged man time travels to the past to become a teacher to his 17-year-old classmates. Hao Hui Gui is a 36-year-old high school teacher who is still single. During a gathering, he gets into a huge disagreement with everyone present and even gets into a fistfight with his best friend. Upon returning home, he mindlessly flips through his personal diary from 20 years ago and starts to recall many memories from the past. He falls asleep eventually and meets with his younger self in his dreams.
as Hao Hui-Gui / Liu Da Zhi [Adult]
as Wei Xiao
as Liu Da-Zhi
as Ding Dang
as Chen Tong
as Chen Xiao-Wu
as Xu Huai-Yu
as Hao Hong-Mei
as Wang Da-Qian
as Feng Mei-Li
as Tan Xiao-Wan
as Wei Xiao [Adult]
as Hao Tie-Mei
as Miss Yang
as Chen Cheng
as Xu Jiao
as Jia Xin-Niang
as Adult Ding Dang
as Xiao Hua
