one night, hot springs is a visual novel created by indie developer npckc during the itch.io trans gal jam that ran from January 31st to February 28th, 2018. The game was later released on Steam on August 30th, 2018.
The game follows Haru, a Japanese trans woman who has been invited to spend the night at the hot springs with her friend Manami. As the story progresses, Haru discusses some of the experiences and issues faced by trans women in Japan.
There are seven total endings with a playtime of ~30 minutes to complete the game each time.
After the game's release, two sequels were developed: Last Day of Spring and spring leaves no flowers.