My girlfriend's streaming career

My girlfriend's streaming career is a cuckold-themed adult visual novel. The player is Yamato, a young man who is in a happy relationship with his girlfriend, Mio, who wants to become a successful streamer. After Mio starts streaming on the controversial platform MiniTV, where adult content is allowed, Yamato starts to become paranoid about the relationship Mio is developing with her fanbase. As Yamato's fears turn to fantasies, he begins to realize that he has a cuckold fetish which may change his relationship forever.

The game features a vertical interface resembling a phone screen, with much of the story dialogue being delivered in text messages between Yamato and Mio. At certain points, the player can choose from one of several options for how to respond, which may cause the story to branch and result in different endings.