The quadruplets' home is in Shenzhen. In a messy, narrow and shabby house of 60 square meters, quadruplets live with their parents and sisters. The family's clothes, sundries and daily necessities are piled up in various places in the room.

The bed where the quadruplets sleep is a big berth made of two single beds with iron shelves, and their parents are crowded into a small room of only 6 square meters. Because there is no room for a double bed, the couple can only be forced to squeeze into a single bed, and the elder sister who is studying at university can only live in the utility room.

After the designer's observation and experience, it is found that besides the small bedroom space and insufficient beds, there is still an urgent problem to be solved. Every morning, for the mother of quadruplets, it is like a war. The most she said to her children is "hurry up", because as long as one of the quadruplets delays time, they will be late for school collectively. But there is only one bathroom at home, and quadruplets need to queue up to wash and go to the toilet. Sometimes it is too late to wash, and the quadruplets will squat on the ground and use the washbasin to solve the problem of washing.

A messy room of 60 square meters needs to meet the living needs of a family of seven, and they need to be provided with relatively independent space. We must make full use of every minute of space and plan every inch of space reasonably.