The couple must pass through a fire before entering the groom's home.

"I held the doll and smiled at him. That was the happiest Children's Day I ever had," says Chen, 25, a marketing executive at an infant formula company.

Chen is from Shanghai's Chongming Island, and lives in a rented apartment downtown by her own. Wang often sneaks into her home to clean.

"I was surprised when I arrived home and found more than 20 notes that he stuck everywhere," Chen says.

He wrote what he had put in the refrigerator, that he had done the cleaning and laundry, bought her favorite fruits and downloaded the latest movies in her laptop for her to kill time. She keeps these loving notes in a box.

"The moment that I fell in love with her, I decided to marry her, and I've treated her as my wife since then," says Wang, who now works as a marketing manager at a wine agency.

They tied the knot at Chen's home in Chongming on Nov 8.