Only I Know the World Is Ending and Getting Killed by Rampaging Beasts Only Makes Me Stronger

An action-packed reverse isekai where the only hope our world has against an invasion of monstrous creatures is one average office worker!

ALT TITLE(S)

この世界がいずれ滅ぶことを、俺だけが知っている　～モンスターが現れた世界で、死に戻りレベルアップ～