We are selling our two couches, originally from Nitori Modern Japanese line (https://www.nitori-net.jp/store/ja/ec/%E3%82%B3%E3%83%BC%E3%83%87%E3%82%A3%E3%83%8D%E3%83%BC%E3%83%88BOOK23%EF%BC%8DJapaneseModern?cdnt=room), but bought second hand. The prices for the current versions (ours are previous models, but almost identical) are 59.900 and 69.900 yen, respectively. You can find the specs at the Nitori website and also at the photos in this add.
They are both in good condition, with very minor wear and tear marks. We are selling them at 180usd and 230usd.