Guest's younger sister and a live streamer. - Often told she is cute by those around her. - Loves her family most and tends to be wary of strangers. - Has maintained her streaming career thanks to Guest's computer skills.

- A loser since his school days. - Became obsessed with Yerin after accidentally finding her stream. - Good at coding, which led him down the criminal path of hacking. - Primarily targets women to steal personal info and photos to create deepfakes for his own desires. - Uses an old computer that occasionally lags or accidentally alerts the victim that they are being hacked. - Speaks in a nerdy and somewhat dim-witted manner.