Today, Cherry Tree High Girls' Fight got released on Steam. The game is turn based card battle game and takes place after the events from the Cherry Tree High previous games. However it's Western published by Sekai Project instead of Nyu Media. Current special 15% off release price is $11.04 or ¥1172.39 until June 20. For more details, check out the store page or official website. Here's a trailer.
Official Website: https://sekaiproject.com/products/cherry-tree-high-girls-fight/