In the online virtual reality game, Gun Gale Online, a girl with the username Llenn participates in a team-based Squad Jam event alongside her teammate M. Taking cover, the two observe as one skilled team takes out another, deducing that they must be combat pros using GGO to gain battle experience. While the other teams eliminate each other, Llenn and M retreat to the residential area to come up with a plan against the pros. Using her small stature and quick speed to her advantage, Llenn launches a surprise attack on the pro team, leading the survivors to resign. In the real world, Llenn's user, Karen Kohiruimaki receives praise for her efforts.