Sumire is one of those visual novels which actually begins with a fairly relatable premise. Protagonist Ken-chan hangs out in an online forum for his favorite types of games and makes a number of online friends there. Things change when one day he meets a member of the site in person.
This visual novel was developed by NekoNeko Soft as a celebration of their 15th anniversary. As such, there are references to their past games.
It’s also notable that this development studio spawned from Stage-nana, which are known for famed titles such as Narcissu. Sumire’s english release window is still to be determined.