Oritsue Taishi no Isekai Kuri Musume Survival Nisshi

Taishi Orizue is a socially awkward science nerd pursuing a biology degree in the Faculty of Science at a university in the Kanto region. His unremarkable student days are spent alongside his classmate Daisuke Kurii, an eccentric dreamer who harbors one grand ambition: to be whisked away to another world and reign as its harem king, surrounded by a retinue of "chestnut girls." Then fantasy becomes reality. The two are abruptly torn from their ordinary lives and cast into an unfamiliar world, where—before they can even get their bearings—a flock of vicious cockatrices descends upon them. Fortunately, these bookish students are far from helpless. Both are inheritors of the ancient Orizue-style martial arts and seasoned experts in survival techniques. Drawing on their rigorous training, they push through one peril after another, overcoming every obstacle this untamed new world throws in their path. But just as they begin to find their footing, the very beings Daisuke has only ever dreamed about—the mysterious chestnut girls—finally make their appearance.