Aokana - Four Rhythms Across the Blue
VNDB
Extra 1 (Mashiro fandisc) - https://vndb.org/v20228
Extra 2 (Misaki fandisc) [untranslated] - https://vndb.org/v21438
If 1 (Minamo route) [untranslated] - https://vndb.org/v32620
Story Structure
Multiple Routes
No True End
18+ by default
All-Ages on Steam and Switch
User Opinions
u/superange128
One of the better ways I've seen in a fictional sport done right. Has some shounen anime-like aspects but otherwise it generally has a good mix of the sports and stuff and romance.
u/AmmoSexualBulletkin
All in the setting. I enjoy the concept of a sport where players fly around and try to score points. The romance is somewhat middle of the road, it isn't bad but it's not stellar either.
How to Buy
Steam (All-Ages): https://store.steampowered.com/app/1044620/?utm_source=vndb
Steam 18+ patch: https://nekonyansoft.com/shop/product/23
MangaGamer: https://www.mangagamer.com/r18/detail.php?product_code=1143&af=3a123f6214695bfacaa881bd3117c693
JAST USA: https://jastusa.com/games/nnya005/vndb
Switch (All-Ages): https://www.nintendo.com/store/products/aokana-four-rhythms-across-the-blue-switch/