It's the longest time the young couple spend together at work.

Li hands the lunch-box to his wife after guiding passengers on and off the train. Zou, in return, gives Li a "finger heart" by crossing her thumb and index fingers while no one's watching. It's a touching scene.

The two-minutes is bittersweet, the small lunch-box becoming a symbol of their love.

The romance began with an encounter when Zou Xiaojuan wearing her uniform, was commuting by train via Xinxiang East station and drew Li's attention.