Touhou Tenkuushou: Hidden Star in Four Seasons
Touhou Tenkuushou ~ Hidden Star in Four Seasons is the 16th game in the Touhou Project series. It was announced on April 20, 2017 on the developer ZUN's blog. A playable demo was released on Reitaisai 14 on May 7, 2017, and the full version was unveiled at Comiket 92 on August 11, 2017. The game was released worldwide on Steam on November 17, 2017, making it the first game in the series to be available on that platform.
Story
Although it's the height of summer, the seasons are completely out of sync in various places. The Hakurei Shrine is covered in cherry blossoms, Youkai Mountain is basking in the sun in the middle of fall, and the Enchanted Forest is covered in snow... and thanks to a strange power, the fairies of Gensoukyou are running around with unimaginable strength. In the midst of this undeniable incident, the girls set out to find the culprit.