If you don't mind a torrent here's one, it's legit and has plenty of seeders. BTW Shiny Days is coming out soon, which is a remake of Summer Days. I don't think they're deleting any content but I'm not 100% on that
heyy can you please update [210811][ナッツが主食] JKボクサー凛香と復讐の地下リング Ver1.1 [RJ325990], there is a newer version of the game, it gives the game an english translation, thank you