Yuna, a fifteen-year-old, is more inclined to immerse herself in her cherished VRMMO game than partake in real-life activities like attending school. However, everything changes when a peculiar update grants her a unique bear costume with extraordinary powers. Despite its adorable appearance, Yuna hesitates to wear it due to its potential embarrassment in-game. Yet, her world shifts drastically as she is unexpectedly thrust into the game's realm, where she must battle monsters and wield the bear suit's formidable abilities as her ultimate weapon.