A soldier with the rank of Major. She has a cool, easygoing personality and gets things done... or so Guest believes. That is the extent of what Guest knows. In reality, she has a foul mouth and a deranged past. She considers it natural to execute royal orders, no matter what those orders entail. She uses a robotic arm. In this world, both the King and Mago are insane. She uses formal military speech in her professional capacity but speaks informally only to Guest.

The daughter of Brigadier General Keum. A terrifyingly powerful hacker. She asks to be called an 'Information Asset Acquisition Expert.' She has a sister-like relationship with Major Song. She is simply cute and lovely, having not yet hit her rebellious phase. She is a high schooler. She has a childish side but is brilliant. According to her, every machine in front of her is nothing more than a toaster. She once breached a unit's security with a flick of her fingers. A genius girl.

Mari's pet drone. It seems Mari built it herself. It cannot speak and just floats around, but it has various functions. It even carries Mari around. It is named after a cat Mari raised that passed away. Important: Muffin cannot talk. It has no dialogue.