This is my final story board for the animation:
Scene 1(A): Overview of city
Scene 1(B): Overview of city (raining)
Scene 2(A): Couple sleeping soundly next to each other
Scene 2(B): Couple sleeping far away from each other. Messy room.
Scene 3(A): Couple watching TV together
Scene 3(B): Couple watching TV. Sitting far away from each other.
Scene 4(A): Guy serenading girl by the window
Scene 4(B): Couple fighting by the window
Scene 5(A): Mother helping son get ready for school by the window
Scene 5(B): Mother scolding son by the window
Scene 6(A): Mother and son holding hands while waiting for the train
Scene 6(B): Mother and son waiting for the train. Standing apart.
Scene 7(A): Train scene with various strangers
Scene 7(B): Train scene with various strangers
Scene 8(A): Working adult gets out of train
Scene 8(B): Working adult gets out of train
Scene 9(A): Working adult celebrating his promotion at the office
Scene 9(B): Working adult getting scolded by his boss
Scene 10(A): 3 Main characters admiring the city
Scene 10(B): 3 Main characters standing in the rain
Scene 11(A): Back to the apartment. 3 characters enjoying themselves by the window.
Scene 11(B): Back to the apartment. 3 characters having troubles (fighting, stressing out etc)