https://idolmaster-official.jp/news/01_16139

Preorder for Haruka, Chihaya, and Miki 20th Anniversary Doqute extra large plushies (size: 100 cm x 70 cm x 75 cm) is now open at Taito Goods website until September 8th.
The plushies are made to order and will be released in January 2026. Each one costs 66000 yen plus additional 1300 yen for shipping fee (individually).

Haruka: https://taito-goods.jp/shop/g/g60101440
Chihaya: https://taito-goods.jp/shop/g/g60101450
Miki: https://taito-goods.jp/shop/g/g60101460