PRIJOUHE Men's Japanese Kimono Jacket Cardigan Yukata Noragi Casual Fashion Seven Sleeves Lightweight Open Front Coat

I found some links that may be helpful or at least guide you in the right direction! Make sure to double check the measurements before buying, but these items are at least somewhat plus size inclusive. All of these link will be for Amazon, but you can find them other places too! For the pink under-dress , I picked this one due to the similar color, length of the sleeves/dress, and the square neckline. For the red sleeveless kimono-like top , I believe something like this will work. I know this one has sleeves, but you can tuck in the sleeves (safety pins are great) to give that same sleeveless look. For the obi belt , I went with this one even though it's all pink as it will give a good contrast to the top, and I think the pink color is similar to the dress I linked. The only thing that I would maybe think about is that 2/3 links I sent are of a shiny material while the base dress isn't. Some people are fine with mix and matching fabric types while other prefer to stay all the same. If I'm not mistaken, a lot of traditional japanese clothing is made out of a silk or satin-like material. Hope this helps!!