A single teenage girl journeys through the crumbling ruins of civilization-the last human on Earth, exploring the concrete jungle that has outlived mankind. Keeping her company is woman's best friend-the ever-adorable and quick-witted Shiba Inu Haru, who is ready to stick with her through thick and thin! With such a pleasant conversation partner to keep the postapocalyptic doldrums at bay, the end of the world might not be so bad after all!
"You have acquired experience points. Kudo Kazuto has risen to Level 1," echoes through Kazuto's mind after he runs over a mysterious dog on his way home from work. The next morning, he awakens to a changed world, full of vicious monsters. The world now features a game-like system of levels and skills, alongside danger at every turn. Will Kazuto be able to survive by leveling up and taking advantage of the special skill he acquired the previous night? His survival adventure begins now!