We incorporated rich natural light as direct light and indirect light into architecture and planned the light sequence mainly around LDK. In the morning, when a crowd waking up in each private room on the second floor crosses the study, it awakens the body while experiencing the indirect light of the colonnade part. When getting off the stairs, you will reach the LDK while experiencing indirect light from the high windows installed at the top. I experience the direct school from the south side with LDK and realize the start of a real day. I thought whether arranging indirect light and direct light on the other side of the flow line can make the feelings of the person living there better. Moreover, it is based on white except for the floor and the attic so as to make it easy to feel light even in the interior. In terms of overall planning, considering the possibility of client's parents living together in the future in the planning, we plan to make the Japanese-style room more spacious and to be able to travel between LDK and Japanese-style room so that they can be easily accessed from around the water and the room ing. I would like to think through the architecture the movements and emotions of the human heart that natural light can not digitize.