When they have this two stories building project, they try to make it as natural and comfortable as they can. They open up a part of the ground of second floor and put a transparent light film on the ceiling to simulate the scene of sun rise. They curved all the conners to make a surrounded atomsphere. They also use an mix colored light system to create a vibe of early morning sun rising. At last, they use light golden artistic paint to give a relaxed feeling.