How Long Will I Love U

Gu Xiaojiao (Tong Liya), a young woman in 2018, wants her own apartment and a way out of a life that feels borrowed. She wakes one morning to find Lu Ming (Lei Jiayin), a man from 1999, in the same bed, and the bedroom door opens onto a different year depending on which of them walks through it. Su Lun sets the two of them sharing one flat across twenty years, and Xiaojiao learns what staying costs.