It should be placed in the red area. On the one hand, it can be used as a partition, which can play a buffering role in the temperature difference between indoor and outdoor. On the other hand, it can be used as a screen, which does not look into the living room to solve the problem of visitors. **The embarrassing situation of having a meal. If it is placed in the blue area, it will occupy nearly half of the space leading to the bathroom 'passage', making it inconvenient to come and go. For example, if you have an emergency or diarrhea at night, the fish tank will inevitably be knocked over and the tank will be damaged when the lights are dim. A terrible situation where the fish dies, feces, and the pants are wet.