Fifteen-year-old shut-in Yuna would rather grind her favorite VRMMO, World Fantasy Online, than deal with actual people, and a new update rewards her with a bear-costume outfit boasting absurd stats she's too embarrassed to equip. Before she can decide whether to wear it, she wakes up physically inside the game world, monsters and all, with the bear suit as her only weapon. Reluctant to be noticed, she starts helping people anyway, and the suit's power makes that hard to avoid. This manga adapts the original light novel.