It was a kind of go-around veranda (a narrow wooden passageway along the edge of a house facing the garden) constructed on the top story and, in one case, from which they were able to go out (Soto (Outer)-Mawarien)), a highly-decorated Koran (handrail and balusters) was attached.
周回する縁側の一種で、最上階にあるため、外に出ることのできるもの（外廻縁・そとまわりえん）には多彩な高欄（手摺・欄干）が付けられる。