It was announced that Alicesoft’s Dohna Dohna and six other Shiravune title will be heading to the JAST Store, MangaGamer and the Kagura Games Store very soon. These releases are the same as the Johren ones, but without the intrusive DRM.
Other titles coming to the These storefronts include Nope Nope Nurses, the sequel Nope Nope Nope Nurses, Kuroinu Redux, Holy Paladin Cynthia, Saimin Gakushū: Secret Desire and the very recently released The Shell Part I: Inferno.
You can find out more about all the games on the JAST Store site. Each title is up for pre-order now and will release on August 7th, 2023.