Gakkougurashi!

Yuki Takeya loves living at school with the cheerful School Living Club, whose members spend their days cooking, tending the rooftop garden, and inventing activities across the empty campus. To Yuki, Yuuri, Kurumi, Miki, their teacher Megu-nee, and the dog Taroumaru are simply making the most of an unusual club rule.

Outside Yuki's comforting view, a disaster has overrun the city and transformed the school into a barricaded shelter. Her friends protect both their dwindling supplies and the fragile illusion shielding her mind, even as the danger beyond the doors makes ordinary school life harder to preserve.