Xiao Yutou carries the past with him into the future. Along the way, Xiao Yutou lost some of the past and picked up some of the future. Who will accompany Xiao Yutou to the end? Who parted ways halfway? The past, what was thought to be lost in the past, what was left behind, what was thought to be preserved in the future, are all scattered along Xiaoyutou's journey. As this road goes further and further, everything about Xiao Yutou will also gradually go further and further away.