Japan has unique parts of architectures. One of them is Shoji. Below is quated from wikipedia.

In traditional Japanese architecture, a shōji (障子?) is a door, window or room divider consisting of translucent paper over a frame of wood which holds together a lattice of wood or bamboo. While washi is the traditional paper, shōji may be made of paper made by modern manufacturing processes; plastic is also in use.

You may think “Paper can't shut out the sounds and the air!” We don't mind those. The only ploblem is that shoji gets torn EASILY. If cats being in a Japanese traditional house, you can imagine what they will do. One of the thing we have to do in the end of the year is reparing shoji.

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